• KYW News at 11 PM
    11:00 PM - 11:40 PM

NORRISTOWN, Pa (CBS) — Two people were hospitalized Tuesday after a chemical leak forced the evacuation of an office building in Norristown.

It happened just after 11:30 a.m. at the Montgomery Professional Building along the 1300 block of Powell Street.

As many as a dozen people were treated at the scene after the odor forced workers from the building.

None of the injuries were believed to be serious.

The cause of the leak is under investigation.

Officials say contractors were working inside the five-story building at the time of the incident, but it wasn’t immediately clear if they caused the leak or if it was a natural gas leak.

The building is expected to remain closed the rest of Tuesday and Wednesday.

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