According to the department, an 18-year-old man was arrested by the Kent police in the port area of ??Dover this morning.
Police Commissioner Mark Rowley of the city is confident that the explosive device was launched remotely.
Rowley warned that during the week the police will exercise increased control in the streets of London in order to prevent serious terrorist incidents.
Responsibility of the law was assumed by the organization "Islamic State" banned in many countries,.
Police officers and detectives conduct joint investigation. Rowley suspects that the criminals had several.
Information on the victims of the terrorist attack is absent.
As reported in the "URA-Inform", because of the explosion in the London subway in the morning of September 15, suffered at least 20 people.