WATERFORD, Conn. (AP) – The Millstone Two nuclear power plant has reopened after repairs were made to fix a problem that prompted operators to close the facility Thursday morning.

Peter Hyde, a company spokesman, said Sunday that the facility in Waterford was reopened late Friday night and was operating as usual.

Operators shut it down Thursday as a precaution when two valves closed, a result of an interruption in the flow of the compressed air system. Officials said the problem was not related to the nuclear reactor, and did not jeopardize public safety.

Hyde said Sunday that the cause of the problem remained under investigation.

Millstone Two produces 870 megawatts of power. One megawatt is enough to power 1,000 homes.

Millstone Three was operating normally while Millstone Two was shut down, and Millstone One is being decommissioned.

AP-ES-02-26-06 1347EST