WATCH: 3 hospitalized with burns after RV goes up in flames in Peabody

Three men were hospitalized with burn wounds after an RV caught fire on Tuesday afternoon.

Crews responding to multiple 911 calls on Walker Road for a report of an explosion found an RV fully engulfed in flames on arrival, according to Peabody fire officials.

Officials say two adult men were flown to a Boston hospital with serious injuries, while a young man in his 20s was transported to an area hospital by ground. One of those victims returned home on Tuesday night.

Firefighters say the flames were so intense that the sidings of two nearby houses began to melt.

The fire was knocked down quickly and contained only to the mobile home. Photos showed the charred remains of the mobile structure.

Neighbors say the RV was being worked on to go on vacation.

The cause of the fire remains under investigation by the Peabody Fire Department and the State Fire Marshal’s Office.

No further information was immediately available.

This is a developing story. Check back for updates as more information becomes available.

Download the FREE Boston 25 News app for breaking news alerts.

Follow Boston 25 News on Facebook and Twitter . | Watch Boston 25 News NOW