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DAMASCUS, May 4 (Xinhua) -- A 48-hour regime of silence will start in Syria's northern city of Aleppo as of Thursday, the Syrian army announced Wednesday.

The regime of calm state will go into effect at 1:00 a.m. Thursday (GMT 2300 Wednesday), said the military statement.

The truce in Aleppo comes as the city has witnessed over 10 violent days, during which over 120 people were killed and hundreds of others wounded.

The U.S.-Russia-backed truce in Aleppo came to bring a lull to the troubled city that has witnessed the most violent shelling from the rebels on government-controlled areas.

Opposition activists also accused Syrian warplanes of striking rebel-held areas in the eastern part of the city.

The "regime of silence" has previously been announced to include areas in the countryside of the capital Damascus and the northwestern province of Latakia.

Russia and the United States have recently discussed including Aleppo in the regime of calm.