Authorities in Russia have stated that there is a possibility that yesterdays Metro bombing in St Petersburg was caused by a suicide attack.
The suspect has been named as Akbarzhon Jalilov from Krygyzstan.
The blast that occurred between two Metro stations killed 14 people, with a further 49 injured.
Russian police found a second device planted by the subject, this device did not explode.
There have been several reported bomb scares in St Petersburg Metro stations today, causing evacuations.
No group has claimed responsibility so far.