The Health and Safety Executive is investigating the explosion which happened on Pimlico Road in central London, yesterday morning.
"We are aware of this and we are making inquiries into what happened."
More top news
19-year-old Angus Mainland took a selfie with his mystery traveler at the weekend. He fell in love. But forgot to ask for her number.
The creature was spotted in Hampstead Heath, the London Underground and the South Bank.
The problems appear to have been caused by a power supply problem in Queen's Park in north west London, which has affected signalling.