Russia says its planes, and Syria's, have not flown over Aleppo for 9 days
Rescue workers said air strikes by Syrian or Russian warplanes have killed at least 22 people, in the province of Idlib.
Russian and Syrian warplanes have not flown closer than 10 kilometres of Syria's Aleppo for nine days, the Russian defence ministry said on Thursday.
Rescue workers and a monitoring group have said air strikes by Syrian or Russian warplanes on Wednesday had killed at least 22 people, mostly children in a village in the rebel-held province of Idlib, which is in northwest Syria near Aleppo.
Idlib is the main Syrian opposition stronghold, though radical groups also have a large presence there. It has regularly been hit by Syrian and Russian warplanes as well as the US-led coalition targeting Islamic State (ISIS) militants.
Earlier in the day, the northern Aleppo province saw a new escalation as a helicopter believed to belong to Syrian government forces dropped barrel bombs in a deadly attack on Turkey-backed opposition forces in the border area, Turkish officials said.