On Tuesday, an air strike killed at least 10 civilians in the Bab al-Nairab district of eastern Aleppo, according to the opposition monitoring group the Syrian Observatory for Human Rights (SOHR).
On Wednesday morning, 21 civilians including two children were killed in government artillery fire on the Jubb al-Qubbeh district in east Aleppo, the Observatory said.
"They are not safer from airstrikes, but are at least seeking refuge from the government gangs", Hamdo said, adding that numerous fleeing civilians fear revenge attacks, amid reports of arrests from people living in government-held areas.
A Syrian child, who fled with his family from rebel-held areas in the city of Aleppo. Images published by the Civil Defense showed bodies strewn on a debris-filled road in an attack they It blamed on government forces.
Opposition activists say these people were trying to flee to the government-held districts, but that they came under regime shelling.
Violence continued to rage across the city on Wednesday, with the Syrian army saying eight civilians had been killed in a western area of the city by rebel rocket fire.
Government forces and allied fighters have seized a third of the rebel-held east of Aleppo since they began an operation to recapture all of the battered second city just over a fortnight ago.
The U.N. food aid agency says it's mobilizing food stocks to help thousands of people in Syria fleeing fighting in rebel-held parts of eastern Aleppo and is appealing for "unconditional, unimpeded, sustained and safe" access to civilians in need around the country. However, many observers have said that Ankara aims to suppress Kurdish forces in Syria and prevent them from connecting three de facto autonomous Kurdish areas into one enclave south of the Turkish border.
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According to the United Nations, the conflict has claimed nearly 10,000 lives and left hundreds of thousands displaced. He said the war games included air defence units as well military drones and S-300 ground-to-air missile systems.
Pawel Krzysiek, head of communications at the ICRC in Damascus, told The Associated Press Thursday that the situation of displaced people who fled districts in eastern Aleppo is "very dramatic, heartbreaking".
The top German diplomat said he will travel to Minsk later today for talks on the Ukrainian crisis, adding that during bilateral meeting with his Russian counterpart, he will also raise the issue of the humanitarian crisis in eastern Aleppo. "Hopefully they will be OK but I am not optimistic about that now", he said.
At the same time, indiscriminate shelling continues on civilian-populated areas and civilian infrastructure in western Aleppo, killing and injuring civilians, and displacing over 20,000 people in recent weeks.
Since mid-November, more than 739 civilians have been killed - and hundreds more injured - in regime attacks on eastern Aleppo, according to figures released by local civil defense officials.
In New York on Wednesday, Syria's United Nations ambassador, Bashar Ja'afari, accused the rebels of opening fire on civilians as they tried to flee eastern Aleppo.
British Prime Minister Theresa May on Wednesday described the situation in Aleppo as "horrific" and called on Russian Federation to act.
The senior military official said the "human flood" of the displaced from eastern Aleppo requires organization and precision to provide security those fleeing and also to ensure no "sleeper cells" or suicide attackers were among them.
The Syrian regime is backed by Russian airstrikes and Shiite militias from both Iran and Iraq.