A huge explosion has rocked a busy supermarket in St Petersburg, leaving at least 10 people injured. The blast happened in the Perekrestok supermarket in the northwest of the city, and shoppers fled in panic as emergency crews descended on the scene.  It is thought a bomb packed with shrapnel exploded in a storage locker, and authorities are treating the explosion as a deliberate attempt to kill.

One person is believed to be in a serious condition, while a further three were taken to hospital. Six more were treated at the scene, emergency service sources told Russian media. It comes days after a foiled terror plot to target the city led to large quantities of explosives being seized. READ MORE