Explosion in the subway in London

           

 The explosion took place in the United Kingdom London subway. Some of them were injured. Police believe that it is a terrorist attack. They started investigating the incident.The blast occurred on Wednesday at the Persons Green Station in Fulham, southwest of London, BBC News reported. A picture spread through social networking shows that there was an explosion of white bucket inside a bag. In this blast some passengers were injured in the face.But after the explosion panic spread. Passengers departed from the train at Personas Green Station. Police and fire service personnel were present at the station after the incident. Later armed police was deployed. At this time passengers waiting at the station were terrified and left the station complex.London's mayor Sadik Khan condemned the incident. He said, we will not be defeated by terrorism.