Warplanes struck several neighborhoods of the northern city of Aleppo Sunday, the first in Aleppo since a nationwide ceasefire went into effect last Monday, a monitor group reported.

At least one woman was killed when the airstrikes targeted the rebel-held areas of Sakhour, Karm al-Jabal and Karm al-Baik, according to the Syrian Observatory for Human Rights.

The airstrikes were the first in Aleppo, since the city enjoyed a relative calm following the implementation of a U.S.-Russian brokered truce in Syria.

Earlier in the day, Syria's national TV said tens of civilians evacuated the rebel-held areas in eastern Aleppo city, as part of a renewed government call on civilians and armed men to leave the besieged rebel-held areas in Aleppo.

The U.S.-Russian ceasefire deal is threatened with a recent escalation between Washington and Moscow, after the U.S.-led airstrikes killed 90 Syrian soldiers in the eastern province of Deir al-Zour, the first U.S. strike to target government forces since the coalition started operations in Syria in late 2014.

Source : XINHUA