Around 11.00 am, an earthmoving machine ripped out a low pressure pipeline (diameter = 40 mm) in the public road of a commercial zone causing a gas leak. A 60 m safety perimeter was set up and 54 persons evacuated. Gas indicator measurements revealed a danger zone at 2 m from the leak. The technical team from the gas department cut off supply in the sector, thus stopping the leak. The shops reopened around 3.00 pm. Operations in a foundry supplied by the gas network were disturbed during repair: two furnaces were temporarily stopped.