Fire crews in Manchester have tackled a fire involving a pressure washer at a cleaning unit in Walkden.
It is believed a stourage tanker containing fuel caught fire.
Police say two members of staff received serious facial burns in the incident and have been taken by air ambulance to Wythenshawe Hospital. Two other people have been taken to hospital with minor injuries.
Four fire engines and a support unit attended the incident and put the fire out using foam.
Residents were advised to close doors and windows as a precautionary measure.
The cause of the fire is to be investigated.
Fire crews from Greater Manchester Fire and Rescue Service are currently at a fire in Walkden.
GMFRS received a call just after 2pm to report the incident on Harcourt Street.
There are currently four fire crews at the scene - three fire engines, from Farnworth and Bolton Central fire stations, and a support unit.
A fire, believed to be an explosion, has happened on Harcourt Road near North Walkden Primary School.
More to follow.