A suicide car bomb attack killed four people overnight at a Kurdish security checkpoint in north-east Syria, the Syrian Observatory for Human Rights said Tuesday (July 18th).
The attack comes as Kurdish forces from the People's Protection Units (YPG) spearhead the fight for the "Islamic State of Iraq and Syria" (ISIS) stronghold of al-Raqa as part of the Syrian Democratic Forces (SDF) alliance, AFP reported.
The Observatory said the blast hit a checkpoint manned by the Asayesh security forces in al-Hasakeh province, around 20 kilometres from Ras al-Ain.
At least two of the dead were Asayesh members, while the identities of the other two were not yet confirmed, the Observatory said.
There was no immediate claim of responsibility for Tuesday's incident.
