Shiite Muslims mark the end of the Arbaeen pilgrimage in photos

Shiite Muslims in Iraq and Iran commemorate the end of Arbaeen, the 40-day mourning period following Ashoura.

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The sun sets as Shiite pilgrims march on their way to Karbala for Arbaeen in Najaf, Iraq, Friday, Aug. 8, 2025. (AP Photo/Anmar Khalil)

Shiite pilgrims mark the holiday of Arbaeen inside the holy shrine of Imam Hussein, which marks the end of the 40-day mourning period following Ashura, in Karbala, Iraq, Thursday, Aug. 15, 2025. (AP Photo/Hadi Mizban)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Ammar Khalil)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Anmar Khalil)

Shiite pilgrims women pray during Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Ammar Khalil)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Ammar Khalil)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Anmar Khalil)

Shiite pilgrims mark the holiday of Arbaeen inside the holy shrine of Imam Abbas, which marks the end of the 40-day mourning period following Ashura, in Karbala, Iraq, Thursday, Aug. 15, 2025. (AP Photo/Hadi Mizban)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Ammar Khalil)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Anmar Khalil)

Shiite Muslim women pray at the shrine of Saint Abdulazim in Shahr-e-Ray, south of Tehran, Iran, Thursday, Aug. 14, 2025, during a ceremony to observe the Arbaeen, which marks the anniversary of the 40th day of mourning following the 7th century death of the Prophet Muhammad's grandson Hussein, who was killed in a battle in Karbala in present-day Iraq. (AP Photo/Vahid Salemi)

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The sun sets as Shiite pilgrims march on their way to Karbala for Arbaeen in Najaf, Iraq, Friday, Aug. 8, 2025. (AP Photo/Anmar Khalil)

Shiite pilgrims mark the holiday of Arbaeen inside the holy shrine of Imam Hussein, which marks the end of the 40-day mourning period following Ashura, in Karbala, Iraq, Thursday, Aug. 15, 2025. (AP Photo/Hadi Mizban)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Ammar Khalil)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Anmar Khalil)

Shiite pilgrims women pray during Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Ammar Khalil)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Ammar Khalil)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Anmar Khalil)

Shiite pilgrims mark the holiday of Arbaeen inside the holy shrine of Imam Abbas, which marks the end of the 40-day mourning period following Ashura, in Karbala, Iraq, Thursday, Aug. 15, 2025. (AP Photo/Hadi Mizban)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Ammar Khalil)

Shiite pilgrims participate in Arbaeen, which marks the end of the 40-day mourning period following Ashoura, in Karbala, Iraq, Thursday, Aug. 14, 2025. (AP Photo/Anmar Khalil)

Shiite Muslim women pray at the shrine of Saint Abdulazim in Shahr-e-Ray, south of Tehran, Iran, Thursday, Aug. 14, 2025, during a ceremony to observe the Arbaeen, which marks the anniversary of the 40th day of mourning following the 7th century death of the Prophet Muhammad's grandson Hussein, who was killed in a battle in Karbala in present-day Iraq. (AP Photo/Vahid Salemi)

WASHINGTON (AP) — The Federal Aviation Administration grounded all flights nationwide Friday afternoon because of communications problems at regional air traffic control centers.. The FAA notice said the ground stop was being imposed “due to extraordinary circumstances and for reasons of safety.”

Transportation Secretary Sean Duffy said there is a communications issue affecting the regional air traffic control centers that direct planes between airports nationwide. He said FAA technicians are investigating. This is the first nationwide ground stop since January 2023 when a key FAA computer system malfunctioned. Before that the last time had been after the Sept. 11, 2011 terrorist attacks.

Shiite Muslims mark the end of the Arbaeen pilgrimage in photos

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