A pub burger van exploded near a train station and sent shards of glass into the air, injuring two people.
Emergency services received reports of the blast near Stowmarket train station in Station Road, Suffolk, at about 20:20 BST on Saturday.
The victims were struck by flying glass from the catering unit and buildings after a gas cylinder leaked in the van area, Suffolk fire service said.
The nearby Kings Arms pub confirmed the van was in its car park.
The two people hurt were treated for minor injuries and one was taken to Ipswich Hospital, East of England Ambulance Service said.
Suffolk Fire and Rescue Service group commander Wil Tel said: "There was a fair amount of glass that had been blown out from the burger van and nearby area which had affected the two persons who got the injuries.
"There was no fire and ultimately the gas cylinder was made safe."
Mr Tel said despite initial investigations the cause of the blast was unknown, but there was a "gas leak from a cylinder".
The fire service will be working with the owners and insurance companies, he added.
It is understood the burger van had not been in use recently, with the previous tenants said to have left in June.
In a Facebook post, the Kings Arms, which is next to the train station, said the "gas canister exploded in the old burger van in the car park".
They added that "no-one was seriously injured... but a good friend did get quite a lot of glass hit him so he was taken to hospital".
Mr Tel urged people to be cautious when using gas cylinders and cooking outside in light of the recent spate of hot weather.
"Anyone who has gas cylinders needs to make sure they are stored in a cool and well-ventilated place," he said.
"If you are not using the area since Covid, then make sure you do check it on a regular basis."
Nearby buildings had to be evacuated and people were urged to avoid the area, while the station was closed for two hours.