A man has been shot dead by police after a stand-off in a property.
Cambridgeshire Police were called to Duck Lane, St Neots, over concerns for people inside the property at 7.45pm on Wednesday.
Firearms officers shot the man, believed to be in his 40s, dead just after 8pm, the force said.
A spokesman added: "The man died at the scene. No one else was injured in the incident."
The Independent Police Complaints Commission (IPCC) is investigating the incident.
A spokesman said the commission was contacted by Cambridgeshire Police on Wednesday night and declared an independent investigation at about 9.30pm.
He added: "The man's next of kin have been informed of his death and the area will remain cordoned off for some time whilst IPCC investigators undertake the scene management process.
"The investigation is in the very early stages and we are unable to provide further details at this time."