Syria's regime has accused armed groups of carrying out a "toxic gas" attack that left dozens of people struggling to breathe and prompted government ally Russia to launch retaliatory air strikes on Sunday.

The prospect of Western military action in Syria that could lead to confrontation with Russia hung over the Middle East on Friday but there was no clear sign that a US-led attack was imminent.

A chemical attack on a rebel-held town in eastern Ghouta killed dozens of people, a medical relief organisation and a rescue service said, and Washington said the reports ...

US lawmakers expressed disgust Tuesday over the suspected gas attack in Syria that killed dozens, with some urging President Donald Trump to challenge the regime in Damascus more forcefully.

A suspected gas attack by Syrian government or Russian jets killed at least 35 people, including nine children, in the northwestern province of Idlib on Tuesday, a British-based war monitoring group said.