Iraq's top Shiite cleric Friday denounced the killing of a teenager whose body was strung up by his feet from a traffic pole in a Baghdad square, as conflicting versions emerged about what led to the 16-year-old’s death.

Security officials initially told The Associated Press that he had been beaten to death by an angry mob after he killed four anti-government protesters and two shopkeepers in a shooting spree. The officials, who spoke on condition of anonymity in line with briefing regulations, provided what they said were the names of four of those killed, saying they ranged in age from 18 to 31.

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TAKES OUT REFERENCE ON HOW TEEN WAS KILLED -  People pass by a wall with names of Anti-government protesters who have been killed in demonstrations in Tahrir Square during ongoing protests in Baghdad, Iraq, Thursday, Dec. 12, 2019.  Iraq's top Shiite cleric has denounced the killing of a teenager whose body was strung up by his feet from a traffic pole in a Baghdad square. The statement comes as conflicting versions emerged about what led to the 16-year-old’s death. Security officials initially told The Associated Press that he had been beaten to death by an angry mob after he killed four anti-government protesters and two shopkeepers in a shooting spree. Spokespersons for the ministries of interior and health said Friday only that the teen had been killed. Interior Ministry spokesman Brig. Khaled al-Muhanna said an investigation into the incident was ongoing.(AP PhotoNasser Nasser)

Iraq's top Shiite cleric Friday denounced the killing of a teenager whose body was strung up by his feet from a traffic pole in a Baghdad square, as conflicting versions emerged about what led to the 16-year-old’s death.

Iraqi protesters eat a free meal in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)

Grand Ayatollah Ali al-Sistani, the nation’s top Shiite cleric, on Friday called the teen's killing a “horrific crime” that must not be repeated and called on Iraqi authorities to hold the perpetrators accountable.

An Iraqi street artist works on a mural in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)

On Thursday, a mob strung up the body of the 16-year-old in Baghdad's al-Wathba square as dozens pointed their cellphones at the gruesome scene.

Free meals are distributed from the trunk of a pickup truck to Iraqi protesters in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)

Al-Sistani's opinions hold sway over many Iraqis, and he has largely sided with anti-government protesters by calling on political parties to implement serious reforms and withdrawing support for the government of Adel Abdul-Mahdi, which led to his resignation last month.

Iraqi protesters rally with their national flag over them in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)

Referring to the incident in Khilani, al-Sistani said the attack as well as targeted assassinations and kidnappings in recent days reinforced previous calls by the Shiite religious establishment that “all weapons must be in the hands of the state," he said.

Spokespersons for the ministries of interior and health said Friday only that the teen had been killed. Interior Ministry spokesman Brig. Khaled al-Muhanna said an investigation into the incident was ongoing.

TAKES OUT REFERENCE ON HOW TEEN WAS KILLED -  People pass by a wall with names of Anti-government protesters who have been killed in demonstrations in Tahrir Square during ongoing protests in Baghdad, Iraq, Thursday, Dec. 12, 2019.  Iraq's top Shiite cleric has denounced the killing of a teenager whose body was strung up by his feet from a traffic pole in a Baghdad square. The statement comes as conflicting versions emerged about what led to the 16-year-old’s death. Security officials initially told The Associated Press that he had been beaten to death by an angry mob after he killed four anti-government protesters and two shopkeepers in a shooting spree. Spokespersons for the ministries of interior and health said Friday only that the teen had been killed. Interior Ministry spokesman Brig. Khaled al-Muhanna said an investigation into the incident was ongoing.(AP PhotoNasser Nasser)

TAKES OUT REFERENCE ON HOW TEEN WAS KILLED - People pass by a wall with names of Anti-government protesters who have been killed in demonstrations in Tahrir Square during ongoing protests in Baghdad, Iraq, Thursday, Dec. 12, 2019. Iraq's top Shiite cleric has denounced the killing of a teenager whose body was strung up by his feet from a traffic pole in a Baghdad square. The statement comes as conflicting versions emerged about what led to the 16-year-old’s death. Security officials initially told The Associated Press that he had been beaten to death by an angry mob after he killed four anti-government protesters and two shopkeepers in a shooting spree. Spokespersons for the ministries of interior and health said Friday only that the teen had been killed. Interior Ministry spokesman Brig. Khaled al-Muhanna said an investigation into the incident was ongoing.(AP PhotoNasser Nasser)

Grand Ayatollah Ali al-Sistani, the nation’s top Shiite cleric, on Friday called the teen's killing a “horrific crime” that must not be repeated and called on Iraqi authorities to hold the perpetrators accountable.

In his weekly sermon, delivered by a representative, al-Sistani also condemned recent killings, kidnappings and assaults on protesters. He added that only the judiciary has the authority to inflict punishment on offenders of the law.

Officials in Iraq often provide conflicting accounts of the same incident, particularly in the context of Iraq's chaotic anti-government protests. The demonstrations have been marked by bloodshed and almost daily confrontations, with security forces firing live ammunition and tear gas at demonstrators. More than 450 people have been killed, most of them shot in the head and chest by security forces. More recently, there have been stabbings, kidnappings and killings by unidentified assailants targeting protesters and activists.

Iraqi protesters eat a free meal in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)

Iraqi protesters eat a free meal in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)

On Thursday, a mob strung up the body of the 16-year-old in Baghdad's al-Wathba square as dozens pointed their cellphones at the gruesome scene.

Security officials initially said the teen had been wanted by police on drug-related charges and was running from security forces before opening fire and killing six people. Some videos circulating on social media showed him being beaten and dragged across the street.

However, other videos showed security forces with pointed guns surrounding a house where the teen apparently had taken cover, raising the possibility he may have been killed by police.

An Iraqi street artist works on a mural in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)

An Iraqi street artist works on a mural in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)

Al-Sistani's opinions hold sway over many Iraqis, and he has largely sided with anti-government protesters by calling on political parties to implement serious reforms and withdrawing support for the government of Adel Abdul-Mahdi, which led to his resignation last month.

Protesters were quick to distance themselves from Thursday's violence in a collective statement in which they condemned the incident and said those who carried it out were not part of their movement.

Last Friday, 25 protesters were killed when gunmen in pickup trucks opened fire in Baghdad’s Khilani Square. That same week, mysterious knife attacks targeted over a dozen anti-government protesters in Tahrir Square, the hub of the protest movement.

Free meals are distributed from the trunk of a pickup truck to Iraqi protesters in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)

Free meals are distributed from the trunk of a pickup truck to Iraqi protesters in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)

Referring to the incident in Khilani, al-Sistani said the attack as well as targeted assassinations and kidnappings in recent days reinforced previous calls by the Shiite religious establishment that “all weapons must be in the hands of the state," he said.

The leaderless uprising engulfed Baghdad and the predominately Shiite southern provinces on Oct 1, when thousands of Iraqis took to the streets to decry rampant government corruption, poor services and scarcity of jobs

Iraqi protesters rally with their national flag over them in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)

Iraqi protesters rally with their national flag over them in Tahrir square, Baghdad, Iraq, Friday, Dec. 13, 2019. (AP PhotoNasser Nasser)