A fire broke out yesterday at an industrial unit in north-west London.
More than half of the unit on Midland Terrace, in Park Royal, was on fire and about 80 firefighters were at the scene.
Ten people were evacuated from nearby homes as firefighters tackle the flames.
London Fire Brigade warned residents to close windows and doors. The ambulance service said there were no reports of any injuries.
Paramedics attended the scene earlier and remain on standby.
Firefighters were initially sent to the scene at about 08:40 BST yesterday after the alarm was raised.