Last night, Britons from Aberdeen to Devon were left baffled by a series of mysterious explosions which shook windows and disturbed sleeping children.
Now a recording of the ‘loud bangs’ has emerged – taken by a woman as she sat at home in Croydon, south London.
Hundreds of Twitter users reported the sounds between around 9pm and 10pm last night, but the Ministry of Defence said it still does not know what could have caused them.
And the Met Office today dismissed suggestions that unusual weather conditions might be the source.
Claudia Angiletta said that she was watching TV at home when the unexplained sounds started.