The International Committee of the Red Cross says that at least 30,000 people have fled rebel-held areas in the northern city of Aleppo over the past few days.

The people fled rebel-held areas in eastern Aleppo and headed to government-controlled parts west of the city. And, countless others are expected to have escaped in other directions. 

Heavy rain falls over Syria on Thursday meant more difficulties for thousands of civilians fleeing eastern Aleppo and try to seek refuge in the government controlled western parts of the city.

The Director of health services in Aleppo told CCTV that government facilities are accommodating over 12,000 people who fled rebel areas, while another 5,000 have settled with relatives in the city's government-controlled western sector.

Meanwhile, the Syrian army continues its military operation to retake the other rebel districts. As the offensive goes on, more civilians are trying to leave eastern Aleppo where nearly a hundred thousand are still trapped by the fighting.

Local sources tell CCTV that many of the residents of eastern Aleppo are hesitant to leave, because they're afraid of being detained by authorities in light of reports that hundreds of young men were being held in a screening center until their identities are confirmed.

The International Committee of the Red Cross in Syria tells CCTV in an interview, it is working with Syrian government, It is very close to gaining access to the detainees.

The international aid agency says it is also working with the Syrian government to gain access to rebel-held eastern Aleppo in order to evacuate the sick and wounded.

The UN estimates that there are around 400 cases in need of immediate treatment in the rebel districts of Aleppo, and these cases need to be evacuated as soon as possible.