A controlled explosion at an engine factory in Peterborough has been completed.
The operation was carried out due to an "unstable chemical" found at the plant. Police say all safety concerns have been satisfied.
#Peterborough Update The controlled explosion at Perkins has been completed and there are no longer any safety concerns
Police are urging residents to stay in doors in Peterborough while a controlled explosion is carried out at an engineering plant.
Staff were evacuated from the Perkins site, which produces engines for use in construction and agriculture machinery, at around 1:30am this morning.
– Inspector Kieran Mylchreest, Cambridgeshire PoliceThe engineering company called us to tell us they'd found this chemical in an unstable state and that they would like some assistance in dealing with it.
"The risk is very, very low to the general public. Those living in neighbouring streets should stay indoors as a precaution.
"We hope to resolve the situation as soon as possible."
A spokeswoman for Cambridgeshire Fire and Rescue Service said a fire engine is on standby at the scene but the service has so far not been involved.
Residents are part of Peterborough are being told to stay indoors while a controlled explosion takes place on an unstable chemical.
Staff were evacuated from Perkins on Frank Perkins Highway at 1:30am this morning.
A 500metre has been set up around the site and roads are currently closed.
Police say The chemical does not pose a risk to nearby residents, however people are being advised to stay indoors as a precaution.
A controlled explosion is due to take place in Peterborough in the next hour. It's after staff were evacuated from the Perkins engines site on the Frank Perkins Highway because of an unstable chemical. Residents are being advised to stay indoors. More follows...
UPDATE. Numerous surrounding roads around the Frank Perkins Parkway Are CLOSED also.
A1139 Frank Perkins Parkway, Peterborough. CLOSED. Ongoing Incident Nearby.
Police have said a pensioner who was found murdered in her bungalow had been repeatedly stabbed and then set on fire.
The body of widow Una Crown, 86, was discovered on the floor in her bungalow in Magazine Lane, Wisbech, Cambridgeshire, shortly after 11am on Sunday.
A post-mortem examination revealed she had been "brutally" assaulted.
Forensic examinations were today continuing at the bungalow and a full investigation has been launched.
Detective Chief Inspector Jon Hutchinson, said: "This was a horrific murder of a defenceless elderly woman in her own home. She was stabbed several times then set on fire in an apparent attempt by her killer to hide her injuries and destroy evidence."
Olympic hero Louis Smith, is supporting Cambridgeshire Constabulary's drink drive campaign.
The Silver medallist from Peterborough says he wants to appeal to people, especially in the local area, to think before getting in their cars after enjoying a Christmas drink.
A 21-year-old man has been charged with murder and attempt murder in connection with Peterborough stabbing. He will appear in court tomorrow
Police have charged a 21-year-old man in connection with a double stabbing in Peterborough on Wednesday.
One man died and another was seriously injured during the incident in Gilpin Street.
The man was arrested yesterday and is due to appear in court tomorrow.
Cambridgeshire police say a body discovered this afternoon in a wooded area off Mallory road in Peterborough is thought to be that of missing Peter Field.
Mr Field who was 69, was last seen leaving his home on Wednesday.
He had Alzheimer's disease and Parkinson's disease.
His body has not yet been formally identified but his family have been kept updated with today's discovery.
There are no suspicious circumstances.
Cambridgeshire Police are launching their own Facebook page.
The CambsCops page will include updates on investigations, campaigns and crime prevention advice.
The Facebook launch follows the successful introduction of the CambsCops Twitter account.