The US-led coalition fighting against ISIS has announced that Syrian pro-government armed forces on Wednesday launched an attack on the Syrian Democratic Forces (SDF) headquarters, where there were American advisers at that moment, after which a retaliatory strike was launched, reported RIA Novosti news agency of Russia.

No injuries or casualties are reported yet. 

The coalition also noted that even though they consider the main task in Syria to be the fight against ISIS, they reserve the right to self-defense.

Damascus has not yet commented on this statement.