Air strikes by regime ally Russia killed 10 civilians in Idlib in northwestern Syria Friday, a war monitor said.
The Syrian Observatory for Human Rights, a Britain-based monitor, said those killed in the towns of Kafranbel and Tal Hawash included two children.
The air raids came as two days of talks on ending the war in Syria -- sponsored by Russia, fellow regime ally Iran, and rebel backer Turkey -- concluded in Kazakhstan.
Last September, Turkey and Russia agreed to turn Idlib into a de-escalation zone in which acts of aggression would be strictly prohibited.
Syria has only just begun to emerge from a devastating conflict that began in 2011, when the Assad regime cracked down on demonstrators with unexpected severity.