UPDATE 4-French strike cuts power, disrupts LNG

(Updates throughout)

By Muriel Boselli

PARIS, Nov 14 (Reuters) - Striking French energy workers voted to continue to block the liquefied natural gas (LNG) terminal of Fos-sur-Mer until Friday, union officials said.

But the union officials said on Wednesday it was unclear whether actions at EDF nuclear power stations would be extended.

The leading CGT union said earlier that striking energy workers had cut 7,620 megawatts, or about 12 percent of France's nuclear output capacity since Tuesday night but was unable to give a fresh figure at 1600 GMT.

EDF, France's sole nuclear power generator, said the cuts in power capacity were not hurting the supply balance of the electricity networks or threatening power cuts.

French energy and rail workers are staging their second 24-hour strike in protest at the government's plan to reform special pensions in the public service.

"We'll have fresh news later tonight on nuclear capacity cuts," one official said. "And local CGT unions will vote to decide whether to continue the strikes," he added.

French electricity prices have soared in recent days in a tight wholesale market as EDF's nuclear output has appeared to struggle to meet rising demand for heating due to cold weather.