At least 58 people have been killed and dozens wounded in a suspected chemical attack on a rebel-held town in north-western Syria, a monitoring group says.
The man suspected of killing 11 people by bombing a St Petersburg train is a native of Kyrgyzstan who obtained Russian citizenship, the Central Asian country's security service says.
At least 10 people were killed and 50 injured when an explosion tore through a train carriage in the St. Petersburg underground system on Monday, Russian authorities said.