This is reported by the British newspaper The Sun.
As the police found, a strong fire occurred as a result of the explosion.
It is also reported that the site of the incident caused the calculations of the fire service.
At the same time, spokesman Southend said that, despite the fire, the airport operates in normal mode.
Recall, as reported by the wound "URA-Inform", in London from the metro station Holborn because of the smoke evacuated passengers, and interrupted the movement of trains. The cause of thick smoke is associated with a malfunction of the train.