The jihadist mercenary groups of the so-called Syrian National Army (SNA) attacked the Tishrin Dam. Heavy fighting broke out between the SNA and the Syrian Democratic Forces (SDF). Many of the attackers are said to have been killed in the clashes. Several vehicles were also destroyed by the SDF.

The Tishrin Dam, a crossing point over the Euphrates, is a stepping stone to north-eastern Syria. On the one hand, it is one of the supply lines for the defence of Manbij, but on the other, the SNA could cross the Euphrates from here and directly threaten Kobanê and other cities. Therefore, the defence of Tishrin is of strategic importance.