Firefighters were called to a blaze at an industrial unit in St Helens.
Crews were dispatched to the premises on Chester Lane in St Helens just before midnight on Tuesday (September 6).
A pile of waste materials had been set on fire.
A spokesman for Merseyside Fire and Rescue said: “Crews used a two high-powered hose reel jets and a main branch to extinguish the fire.
“No-one was injured.
“Firefighters remained at the scene for around one hour and 40 minutes.”