SYRIA GAS

A chemical attack has killed at least 58 people, many of them children, in north-west Syria. The White House says it's confident the attack was the work of the Assad government, but it denies any involvement.

chemical attack in in Khan Sheikhoun Source: AAP

This is the deadliest chemical attack since a sarin gas attack killed hundreds of people in August 2013 in Ghouta, near Damascus.