The Chestnut Hill Mall and several other buildings on Route 9 in Newton were evacuated this morning when a gas line was ripped open by a construction crew, local fire officials said.

Buildings between 1 and 27 Boylston St. were evacuated at 9:35 a.m. when a National Grid gas main was ripped open by a contractor, said Newton Fire Chief Bruce Proia.

Once the buildings were cleared of occupants, firefighters and National Grid ventilated the buildings, Proia said.

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There was no explosion and no one was injured, said Proia.

People were allowed back inside at around 10:45 a.m. National Grid and firefighters are at the scene. The federal Occupational Safety and Health Administration is also expected to respond to the scene, Proia said.