UPDATE: Bangor Gas has contained the leak, according to a Facebook post from the University of Maine Police Department. Crews are remaining on scene to assess air quality.

ORIGINAL STORY: The Orono Fire Department is investigating a gas leak on Mill Street in downtown Orono.

Mill Street and Pine Street have been closed. Evacuations are in progress, according to a Facebook post from the University of Maine Police Department.

People are asked to avoid the area.

We will update this story as more information becomes available.