Two people have died following a fire and reports of "multiple explosions" at a house in Lidgate, near Newmarket Suffolk Police said.
The fire, which started at 12.15pm on Tuesday, has caused significant structural damage to the building in The Street, and the area has been cordoned off by police officers.
The cause of the explosions is unknown and a joint fire and police investigation is taking place.
The two people were initially reported as being "unaccounted for".
Cambridgeshire Police have spent the day searching a house in the Girton area following reports of an explosion.
Police say they are treating the incident as an isolated event and are not linking it with terrorism.
A 51 year old man has been arrested on suspicion of committing offences under the Explosives Act.
It's been revealed that an explosion which shook the Norfolk countryside and ripped apart buildings on an industrial estate was caused by a catalogue of errors.
It happened at Rackheath near Norwich 18 months ago. No one will be prosecuted though - as Natalie Gray reports.