POLICE have discovered a crystal meth laboratory in a house in Cawdor Crescent, Hanwell.
Officers raided the semi-detached home, close to Boston Manor station, and discovered equipment used to make the highly-addictive Class A drug, the Evening Standard reports.
Residents have watched them searching the property since Tuesday afternoon.
A large blue forensic tent was set up in the small front garden of the property, with another tent in the back garden.
It is understood that four people have been living in the house, which has been rented out for the last few years.
One neighbour told the Standard: “This is a quiet, residential street and neighbours are really concerned about what’s happened.”
Others said they did not know any of the tenants.
Crystal meth - or methamphetamine - has grown in popularity among UK drug users in recent years.
A police spokesman said: “On Tuesday, officers from Ealing borough were called to an address in Cawdor Cresent, to reports of a dispute.
“They attended and discovered equipment believed to be involved in the making of crystal meth. Officers remain at the address while inquiries continue.”