Officials in Turkey have confirmed that rebels in Syria have seized control of another border crossing between the two countries.
Fierce fighting began in Tel-Abyad on Tuesday night.
Amateur video appears to to show fighters sheltering from and returning gunfire from behind a wall.
It is the first time rebels have targeted a crossing in Syria’s al-Raqqa province – a region which has remained staunchly behind the government of Bashar al-Assad.
Tel-Abyad is the third of seven major crossings along the Turkish-Syrian frontier to come under rebel control.
Syrian state media, though, has spoken only of bloody fighting in the area.
The seizure will strengthen rebel control in the North and will put Assad’s army under more pressure, as the two sides battle for control in the nearby strategically-important city of Aleppo.