EAST LYME, Conn.Health officials say several beaches in East Lyme will remain closed until tests show the water is safe, following a sewage spill totaling 15,000 to 20,000 gallons.

Ledge Light Health District Director Stephen Mansfield says test results on water samples collected Thursday morning should be available Friday afternoon. Until then, swimming is prohibited at McCook's Point, Hole in the Wall, Pine Grove, Oswegatchie and Crescent beaches.

Officials say a computer at a pumping station failed to activate a sewage pump on Wednesday afternoon. That caused the system to overflow from manhole covers and spill into a storm drain near the Niantic River.

Officials say the computer problem has been fixed.

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East Lyme beaches closed after sewage spill