A spokesperson for SFRS said: “Five appliances are currently in attendance at the town’s Burnbrae Road, with crews working to extinguish the fire.
“Local residents are asked where possible to avoid the vicinity, but no longer need to keep windows and doors closed and can now go outdoors.”
An eyewitness previously told Scotland News he first thought the explosions had been people letting off fireworks while Scotland were playing Hungary at Euro 2024.
He added: “Then we looked out the window and saw this huge plume of smoke just drifting over from Johnstone, Elderslie towards Paisley.
“I went outside, had a look and just saw that clearly something had gone on fire in a pretty major way.
“Then there was about thirty minutes of just near continuous explosions. It did sound like guns going off or fireworks or something like that.”
