Amnesty International says Syrian rebel groups believed to be backed by the US, Saudi Arabia, Qatar and Turkey are responsible for abductions, torture and summary killings in north and north-western Syria

"Amnesty International says Syrian rebel groups believed to be backed by the US, Saudi Arabia, Qatar and Turkey are responsible for abductions, torture and summary killings in north and north-western Syria." "Victims included peaceful activists and children, as well as minorities targeted solely because of their religion, Amnesty said."