Bomb rips through St Petersburg supermarket injuring ten Christmas shoppers in suspected terror attack

Ten people have been injured after an explosion ripped through a supermarket in the Russian city of St Petersburg on Wednesday evening.
Four people were hospitalised and six others were evaluated at the scene after an explosion at the Perekrestok market in northwest St Petersburg. No one was killed. 
St Petersburg's branch of the Emergencies Ministry said that a device containing 200 grams of explosives went off on Wednesday at a storage area for customers' bags, according to local news agencies.
Officials said that the explosion was caused by a 'homemade explosive device'. 
No one has claimed responsibility for the explosion at the market in the city's northwest Kalininsky district.
The Investigative Committee has sent experts to look into the explosion, and a criminal case was launched on the grounds of attempted mass murder. 
More than 50 people were evacuated from the supermarket following the blast. 
There were thousands of people inside the shopping complex where the market is located at the time of the incident. It was especially busy because of New Year celebrations.