The blaze broke out at the Suez site in Avonmouth, a spokesperson for the company has confirmed.
Fred Stinchcombe, South West Regional Manager for SUEZ UK, said: “At approximately 1.30am, a fire broke out at our Avonmouth materials recycling facility which sorts dry, mixed recycling materials from local households and businesses including paper, cans, plastic and card.
“The fire is currently ongoing, and we apologise for any disruption caused to local residents and businesses as a result. There are no injuries and we are thankful to Avon Fire and Rescue Service for their quick and ongoing response.”