Suspected chemical attack in Syria that killed over 58

A suspected chemical attack killed at least 58 civilians including several children in rebel-held northwestern Syria, a monitor said, with the opposition accusing the government and demanding a UN investigation.

A Syrian child receives treatment following a suspected toxic gas attack in Khan Sheikhun, a rebel-held town in the northwestern Syrian Idlib province, on April 4, 2017. (AFP) 

Bodies lie in the parking area of a hospital in Khan Sheikhun, a rebel-held town in the northwestern Syrian Idlib province, following a suspected toxic gas attack on April 4, 2017. (AFP)

An unconscious Syrian child is carried at a hospital in Khan Sheikhun, a rebel-held town in the northwestern Syrian Idlib province, following a suspected toxic gas attack on April 4, 2017. (AFP)

Man carries a child following a suspected chemical attack, at a makeshift hospital in the town of Khan Sheikhoun, northern Idlib province, Syria. (AP)

Victims of a suspected chemical attack, in the town of Khan Sheikhoun, northern Idlib province, Syria. (AP)

Frame grab from video provided on Tuesday April 4, 2017, by Qasioun News Agency, shows a Syrian man carrying a man on his back who has suffered from a suspected chemical attack, in the town of Khan Sheikhoun. (AP)