Israel’s internal security agency said Monday that it had arrested more than 50 members of a Hamas cell in the occupied West Bank and east Jerusalem in recent weeks that were involved in planning attacks on Israelis.

The announcement came a day after a Hamas gunman killed an Israeli man and injured four others in a shooting near a flashpoint holy site in Jerusalem’s Old City.

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Mourners gather around the body of Eliyahu Kay, a 26-year-old immigrant from South Africa, during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Israel’s internal security agency said Monday that it had arrested more than 50 members of a Hamas cell in the occupied West Bank and east Jerusalem in recent weeks that were involved in planning attacks on Israelis.

A mourner weeps during the funeral for Eliyahu Kay, a 26-year-old immigrant from South Africa, the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The Israeli man killed in Sunday's attack, 26-year-old Eliyahu Kay, was buried in Jerusalem on Monday. At least one other person injured in the attack remained hospitalized.

Mourners gather around the body of Eliyahu Kay, a 26-year-old immigrant from South Africa, during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Israel and Hamas have four four wars since Hamas seized control of the Gaza Strip in 2007, most recently an 11-day battle last May.

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is surrounded by mourners during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is surrounded by mourners during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Mourners grieve at the funeral for Eliyahu Kay, a 26-year-old immigrant from South Africa, the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Mourners grieve at the funeral for Eliyahu Kay, a 26-year-old immigrant from South Africa, the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Mourners gather at the funeral for Eliyahu Kay, a 26-year-old immigrant from South Africa, the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Mourners gather at the funeral for Eliyahu Kay, a 26-year-old immigrant from South Africa, the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The Shin Bet said it had uncovered the Hamas cell in recent weeks in the West Bank and that it was planning several attacks in the West Bank, Jerusalem and Israel. It said the militants "were involved in establishing a terror infrastructure and money, armaments, weapons and material for preparing explosives were apprehended.”

Mourners gather around the body of Eliyahu Kay, a 26-year-old immigrant from South Africa, during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Mourners gather around the body of Eliyahu Kay, a 26-year-old immigrant from South Africa, during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The Israeli man killed in Sunday's attack, 26-year-old Eliyahu Kay, was buried in Jerusalem on Monday. At least one other person injured in the attack remained hospitalized.

The attacker was identified as a 42-year-old Palestinian man from east Jerusalem who belonged to Hamas. He was shot dead by police at the scene.

Hamas, an Islamic militant group that seeks Israel's destruction, praised Sunday's attack and confirmed the shooter was one of its members. But it did not say whether the shooting was an operation organized by the group or whether the gunman had acted alone.

A mourner weeps during the funeral for Eliyahu Kay, a 26-year-old immigrant from South Africa, the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

A mourner weeps during the funeral for Eliyahu Kay, a 26-year-old immigrant from South Africa, the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Israel and Hamas have four four wars since Hamas seized control of the Gaza Strip in 2007, most recently an 11-day battle last May.

Mourners gather around the body of Eliyahu Kay, a 26-year-old immigrant from South Africa, during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Mourners gather around the body of Eliyahu Kay, a 26-year-old immigrant from South Africa, during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is surrounded by mourners during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is surrounded by mourners during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

The body of Eliyahu Kay, a 26-year-old immigrant from South Africa, is carried during his funeral the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Mourners grieve at the funeral for Eliyahu Kay, a 26-year-old immigrant from South Africa, the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Mourners grieve at the funeral for Eliyahu Kay, a 26-year-old immigrant from South Africa, the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Mourners gather at the funeral for Eliyahu Kay, a 26-year-old immigrant from South Africa, the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)

Mourners gather at the funeral for Eliyahu Kay, a 26-year-old immigrant from South Africa, the day after he was killed when a Palestinian man opened fire in the Old City of Jerusalem, Monday, Nov. 22, 2021. (AP PhotoOded Balilty)