A fault in an underground electrical cable caused an explosion in a quiet Stonecot road yesterday.
The explosion happened in Tonfield Road just after 6am. UK Power Networks said it was caused by a fault in a cable box forming part of the underground electricity cable network in the area.
Nobody was injured and the area was quickly made safe but UK Power Networks has launched an urgent investigation to find out what caused the fault.
A spokesman said: "Our engineers responded quickly and safely to repair the fault. We are now carrying out a full investigation as to the cause of this incident.
"We regularly inspect, maintain and reinforce our network to ensure that London maintains its position as the most reliable electricity network in Britain.
"Underground equipment can always develop a fault but most of the time it has no external impact.
"Some events have involved gas or third party damage and were not necessarily just caused by an electrical fault.
"We are investing more than £10million this year and will spend £80million over the next eight years to ensure that our safety procedures remain robust."
Did you see the explosion? If so, contact reporter Mike Murphy-Pyle on 0208 722 6359 or email email@example.com.