Coffins with remains of people from the Yazidi minoirty, who were killed by Islamic State militants, and they were exhumed from a mass grave, are seen during the funeral in Kojo, Iraq February 6, 2021.Picture taken February 6, 2021. REUTERS/Charlotte Bruneau

Thikran Kamiran Yousif, 22, carries a coffin with the remains of his father from the minority Yazidi sect, who was killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021.Picture taken February 6, 2021. REUTERS/Thaier al-Sudani

Mourners stand next to the coffins with the remains of people from the Yazidi minority, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. Picture taken February 6, 2021. REUTERS/Thaier al-Sudani

Nobel Peace Prize laureate and Yazidi activist Nadia Murad reacts during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Nobel Peace Prize laureate and Yazidi activist Nadia Murad reacts during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Nobel Peace Prize laureate and Yazidi activist Nadia Murad speaks during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Nobel Peace Prize laureate and Yazidi activist Nadia Murad speaks during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Men gather near the tombs of people from the Yazidi minority, who were killed by Islamic State militants and exhumed from a mass grave, during a burial in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Men lower a coffin with remains of a Yazidi minority person, who was killed by Islamic State militants and exhumed from a mass grave, during the burial in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

A Yazidi man looks on during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

A security man looks on during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners carry coffins with the remains of people from the Yazidi minority, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

People stand next to security men near an Iraqi flag during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners carry coffins with the remains of people from the Yazidi minority, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners carry coffins with the remains of people from the Yazidi minority, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

People react during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Yazidis women attend the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners carry coffins with the remains of people from the Yazidi minority, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Yazidis women react during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Yazidis women react during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Yazidis women react during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners carry coffins with the remains of people from the Yazidi minority, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners carry coffins with the remains of people from the Yazidi minority, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners bury remains of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners bury remains of people from Yazidi minority, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Men lower a coffin with remains of a Yazidi minority person, who was killed by Islamic State militants, after exhumed them from a mass grave, during the burial in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Security man carry coffins with the remains of people from the Yazidi minority, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Coffins with remains of people from the Yazidi minority, who were killed by Islamic State militants, and they were exhumed from a mass grave, are seen during the funeral in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners carry coffins with the remains of people from the Yazidi minority, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

General view of the coffins with the remains of people from the Yazidi minority, who were killed by Islamic State militants, after they were exhumed from a mass grave, before their burial in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners carry the remains of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Yazidis play music instruments during the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners carry remains of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani TPX IMAGES OF THE DAY

Mourners carry remains of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Mourners carry remains of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, to bury them in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

A security man stands guard before the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

People attend the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Security men check attendees before the funeral of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave, in Kojo, Iraq February 6, 2021. REUTERS/Thaier al-Sudani

Military vehicles belonging to the Iraqi security forces carry body remains of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave in Sinjar, after a funeral ceremony in Baghdad, Iraq February 4, 2021. REUTERS/Khalid al-Mousily

Military vehicles belonging to the Iraqi security forces carry body remains of people from the minority Yazidi sect, who were killed by Islamic State militants, after they were exhumed from a mass grave in Sinjar, after a funeral ceremony in Baghdad, Iraq February 4, 2021. REUTERS/Khalid al-Mousily

Skeleton remains are pictured during the exhumation of a clandestine grave by members of the State Prosecutor's office in the municipality of Guadalupe, in the Juarez Valley, Mexico January 28, 2021. REUTERS/Jose Luis Gonzalez

Skeleton remains are pictured during the exhumation of a clandestine grave by members of the State Prosecutor's office in the municipality of Guadalupe, in the Juarez Valley, Mexico January 28, 2021. REUTERS/Jose Luis Gonzalez TPX IMAGES OF THE DAY

Forensic technicians work on the exhumation of skeletal remains found during a search for clandestine graves by members of the State Prosecutor's office in the municipality of Guadalupe, in the Juarez Valley, Mexico January 28, 2021. REUTERS/Jose Luis Gonzalez

Forensic technicians work on the exhumation of skeletal remains found during a search for clandestine graves by members of the State Prosecutor's office in the municipality of Guadalupe, in the Juarez Valley, Mexico January 28, 2021. REUTERS/Jose Luis Gonzalez

Forensic technicians work on the exhumation of skeletal remains found during a search for clandestine graves by members of the State Prosecutor's office in the municipality of Guadalupe, in the Juarez Valley, Mexico January 28, 2021. REUTERS/Jose Luis Gonzalez

A forensic technician works on the exhumation of skeletal remains found during a search for clandestine graves by members of the State Prosecutor's office in the municipality of Guadalupe, in the Juarez Valley, Mexico January 28, 2021. REUTERS/Jose Luis Gonzalez

Mourners carry bodies which were exhumed from a mass grave, to rebury them in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

Mourners rebury a body which was exhumed from a mass grave, in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

Mourners rebury a body which was exhumed from a mass grave, in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

A mourner reacts near bodies which were exhumed from a mass grave in Tarhouna, before getting reburied in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

People carry a body which was exhumed from a mass grave in Tarhouna, before getting reburied in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

Mourners rebury a body which was exhumed from a mass grave, in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

Mourners gather near bodies which were exhumed from a mass grave in Tarhouna, before getting reburied in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

People carry a body which was exhumed from a mass grave in Tarhouna, before getting reburied in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

Mourners stand near bodies which were exhumed from a mass grave in Tarhouna, before getting reburied in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

People carry a body which was exhumed from a mass grave in Tarhouna, before getting reburied in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

Mourners stand near bodies which were exhumed from a mass grave in Tarhouna, before getting reburied in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

Mourners show portraits near bodies which were exhumed from a mass grave in Tarhouna, before getting reburied in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

A mourner reacts next to a body which was exhumed from a mass grave in Tarhouna, before getting reburied in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed

Mourners pray near bodies which were exhumed from a mass grave in Tarhouna, before getting reburied in Tripoli, Libya January 22, 2021. REUTERS/Hazem Ahmed