An independent inquiry into Britain's military role in the Indian army's 1984 raid on the Golden Temple in Amritsar would be carried out under a Labour government, Jeremy Corbyn has said.

The Labour leader said a pledge to carry out a probe into the raid, which is said to have left thousands of people dead, will be included in the next Labour manifesto.

Speaking at a Sikh Federation event in Watford, Mr Corbyn said: "You can be very sure, that whenever the election comes, it will be in the next manifesto... it's a commitment that's going to be there and we will honour that commitment."

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A 2014 investigation by David Cameron's Cabinet secretary, Sir Jeremy Heywood, said a British officer's advice to Indian authorities about how to resolve the stand-off with Sikh dissidents was ignored by army chiefs who ordered the offensive.

Mr Cameron said there was "absolutely no evidence" of UK government involvement in the raid on the Golden Temple complex.

The finding was met with "disappointment" by British Sikh groups and the Sikh Federation said Sir Jeremy's review was "limited in scope".