TRIPOLI, Libya (Reuters) - Libyan tribesmen protested at the giant El Sharara oilfield on Saturday and shut down production, the force guarding the facility and a spokesman for the protesters said.

The tribesmen calling themselves the Fezzan Anger Movement were protesting to demand more development help for their community. Fezzan is the historic name of the southern region of Libya where El Sharara oilfield is located.

"We as the force securing the field inform you that the Fezzan Anger Movement entered the field and stopped the production in line with the demands of the movement," the local oil force guarding the facility said in a statement.

The group of tribesmen also said they had shut the field.

"El Sharara is closed. We had given authorities a deadline but we got no response," said the group's spokesman Mohammad Maighal.

The field, which usually pumps about 300,000 barrels per day, has been repeatedly threatened by tribesmen asking for better health and other state services for poor, desert region.

The state oil firm NOC usually tries to avert such action through talks.

(Reporting by Ayman al-Warfalli and Ahmed Elumami; Writing by Ulf Laessing; Editing by Edmund Blair)

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