Northolt 'armed' stand-off: Homes evacuated Published duration 22 October 2016

media caption Footage shows armed police at the scene, from where Ayshea Buksh reports

Police have evacuated about 80 people from their homes in a stand-off with a man reported to be in possession of "dangerous items".

A 300m cordon has been set up in Wood End Lane, Northolt, north-west London, as armed police and negotiators speak to the man.

Officers were called to the address at about 01:00 BST on Friday over concerns the man had hazardous materials.

Emergency services have not attempted to enter the property.

image copyright LNP image caption Officers were called to the address in Northolt at about 01:00 BST

image caption A 200m cordon was set up in Wood End Lane and later extended to 300m

image copyright LNP image caption Police said there is "no suggestion that this incident is terrorist-related"

A Met Police spokesperson said the force believes there is one man inside the house.

"It is not known what the man has inside the property" but "attempts have been made by him to prevent access to the address."

"There is no suggestion that this incident is terrorist-related nor is it linked to any other ongoing investigation or operation," the spokesperson added.

image caption Armed police and negotiators are at the scene

image caption Exactly what the man has inside the house is not clear

The BBC reporter Ayshea Buksh, who is at the scene, said neighbours told her the man has "aggressive, dangerous dogs" which is one of the reasons why police are being particularly cautious.

A woman claiming to be the cousin of the man involved in the stand-off has told the BBC he recently had "a breakdown".

The man is believed to be in his 40s and according to several local residents, is regularly seen walking his four Rottweiler dogs.