Islamic State insurgentss have executed 33 people in the north-eastern Syrian province of Deir al-Zour, according to a British war monitor.
The mass slaying took place in the town of Badiat al-Mayadin, eight kilometres south-east of the city of al-Mayadin, in Deir al-Zour, one of the main strongholds of the terror group.
The victims were between 18 and 25 years old, according to activists of the Syrian Observatory for Human Rights, who did not witness the executions, but saw the bodies of the victims after the killing.
This is the largest mass execution carried out by the IS in the Arab country so far this year.
The activists did not know the identities of the deceased and whether they were civilian prisoners or belonged to armed factions.
In 2016, IS killed 30 people in Deir al-Zour in two separate incidents, the first was in September, while the second was in October, according to the observatory.
