Harasta is one of the three major terrorist strongholds in Eastern Ghouta which are currently surrounded by the Syrian government forces.
"According to the agreements, over 6,000 people, including 1,500 militants, are expected to be evacuated today. Buses and ambulances have been prepared for the evacuation," the source said.
Earlier on Thursday, the Russian Defense Ministry said that a total of 86,123 people had been able to leave Eastern Ghouta with the help of the Russian center for Syrian reconciliation since the humanitarian pauses went into effect.
On February 24, the UN Security Council unanimously adopted Resolution 2401 that urges all parties to the conflict in Syria to immediately stop hostilities and adhere to a humanitarian ceasefire for at least 30 days across the whole of Syria in order to ensure the safe and unhindered delivery of humanitarian aid, as well as the medical evacuation of injured people. Despite the adopted document, clashes in the area have continued.
Soon after the UN adoption of the resolution, Russia announced a daily five-hour humanitarian break in the fighting to prevent more casualties among the population and allow civilians leave Eastern Ghouta.