OLD TOWN, Maine — Officials say a rupture in a pressurized pipe caused a sulfuric acid vapor leak at a former paper mill in Old Town, Maine.

Old Town officials say the incident happened Monday night at a University of Maine-affiliated laboratory. WABI-TV reports (http://bit.ly/2u7ZB3p ) an industrial cleaning company was at the facility Tuesday and staff will return to work Wednesday.

No one was injured in the incident.

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