Firefighters have tackled a blaze at a church hall in Gosport forcing police to shut a stretch of road.
Crews were called to Elson Road between Ham Lane and Heritage Way at around 7.15pm on Saturday night.
Police warned they closed the stretch of road - near St Thomas Church Hall.
Officers had said: "Please be aware that Elson Road is closed between Ham Lane and Heritage Way - we are currently on scene assisting our colleagues from Hampshire Fire and Rescue at an incident."
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By 2.50am an officer added: "Road has reopened. I am still investigating the matter and have lines of enquiry to follow, thankfully nobody was injured."
Gosport Borough Council leader Peter Chegwyn warned people had been breaking into the building "for weeks".
He said: "Sadly youths have been getting into the building for weeks. Local councillors warned it was a fire risk.
"The church authorities secured it but obviously not secured enough."
He hopes recently-installed CCTV will catch any suspected arsonists on camera.
"The council recently installed a new CCTV camera on the GADSAD building in Elson Rec. due to ASB here," he said.
"Hopefully there might be footage to help the police identify the youths responsible."
A Hampshire Fire and Rescue Service spokesperson said: "We were called to an incident at 7.15pm (on Saturday) on Elson Road.
"Fire crews from Gosport, Fareham, Southsea and Cosham attended the scene and worked into the night where a fire was put out. We had another inspection (on Sunday) morning and we can assure people that everything is now fine."
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