Syrian activists and a war monitor said airstrikes have pounded the southern edge of a opposition stronghold in the Syrias northwest, with one strike killing seven people, including children. The Britain-based Syrian Observatory for Human Rights said three children were among those killed Saturday in Deir al-Sharqi village in southern Idlib. Meanwhile, Thiqa news agency, an activist-operated media platform, also reported the casualties, according to The Associated Press. Increasingly frequent airstrikes and artillery shelling in recent days have raised the number of civilian casualties, as the Syrian regime, backed by Russia, pushes ahead with a months-long offensive on Idlib. Overnight airstrikes killed at least 13, also including children. Home to 3 million civilians and dominated by militants, the Idlib stronghold sits on the Turkish border and is surrounded by regome and Turkish-controlled areas.