Police said the area around Montgomery Road and Mair Drive has been shut down after a vehicle struck the gas line.
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Due to the gas leak, some residents at the Alden of Waterford retirement community where relocated to different parts of the building as a precaution, but were not evacuated, an administrator for Alden of Waterford said. Officials said all safety concerns have been lifted.
Numerous roads in the area were shut down. At about 10:45 a.m., police said the gas was shut off and roads were reopening.
Further details were not immediately available.