Fire crews are battling a blaze at an industrial unit in Chorley.
Firefighters responded to an emergency call after an industrial appliance caught fire at Primrose Bank Mill in Friday Street at 1.03pm on Tuesday (January 8).
Four engines from Chorley, Bamber Bridge, Leyland and Horwich attended the fire at a number of industrial units and were informed that people might be trapped inside.
Firefighters equipped with breathing conducted a search of the building before confirming that everyone had been accounted for.
A spokesman for Lancashire Fire and Rescue Service said: "There were initial concerns regarding people potentially trapped inside the building.
"Crews entered with breathing apparatus and searched the premises, but found no-one inside.
"They located the cause of the fire and are now using hose reels to extinguish the fire."
As of 2.30pm, crews were still fighting the fire - more than 90 minutes after the blaze broke out.
A strong smell of burning plastic has been reported across Chorley town centre.
North West Ambulance Service attended and a number of casualties were treated for smoke inhalation by paramedics at the scene.