Russia's defence ministry has announced that a 48-hour ceasefire had been introduced, starting from Thursday, to help stabilise the war-torn Syrian city of Aleppo.
"On Russia's initiative, a 'regime of silence' has been introduced in Aleppo for 48 hours from 00:01 16 June (local time) with the goal of lowering the level of armed violence and stabilising the situation," a ministry statement said late on Wednesday.
The statement did not specify who Russia has discussed the two-day ceasefire with.
It accused Al-Qaeda affiliate Al-Nusra front of attacking various Aleppo neighbourhoods with multiple rocket launchers, as well as mounting a tank attack southwest of the city.
The last-minute announcement, made just an hour before the ceasefire was to go into effect, came as US Secretary of State John Kerry warned Russia and the Syrian regime to respect a frayed ceasefire that has been severely tested around divided Aleppo.
Russia provides air support to troops loyal to the Syrian regime as they fight the Syrian rebels and jihadists.
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Since fighting erupted Tuesday south of Aleppo, some 70 fighters in total have been killed, according to the Syrian Observatory for Human Rights.
A hospital in eastern Aleppo was heavily damaged by bombing Tuesday, the Medecins du Monde charity said.