UPDATE 1-Shell shuts some Nigeria output, force majeure on Bonny

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LONDON, April 21 (Reuters) - Royal Dutch Shell (RDSa.L) said on Monday it was forced to shut 169,000 barrels of Bonny Light crude oil production in Nigeria for repair work following sabotage to a pipeline last week.

Shell has declared force majeure on Bonny Light exports.

"It will become effective as of April 22 and it will remain effective for the rest of April and May," a company spokesman said.

He added some Bonny Light barrels should be still exported while the force majeure was in place, but the volume would not be enough to meet all contract obligations.

Bonny Light production should be about 400,000 bpd without any problems. (Reporting by Ikuko Kao)