An angry bank customer who poured petrol on himself and staff as he tried to set fire to a Bromley branch all because of a payment being blocked has been jailed.

Jason Duncan-King, 51, from Sevenoaks, was left furious when he went to Metro Bank in Bromley High Street to dispute the blocked payment on October 16 last year.

He threatened staff and promised they "wouldn't like what happened next" before returning an hour later carrying a petrol can in a shopping bag.

Duncan-King told staff to clear the bank, and began pouring petrol over himself, the counter and the rest of the store.

Staff members had petrol poured on them and some fell over the slippery floor causing minor injuries.

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Police quickly arrived to remove Duncan-King, who had matches in his hand during his arrest.

He was sentenced to three-and-a-half years in prison after pleading guilty to attempted arson.

Detective Sergeant Danielle Power said: "Duncan-King had no regard for the safety of others and despite causing no serious physical injuries, his actions have had a big impact on the lives of many staff present on the day."

Detective Constable Jamie Kirby praised the officers who first attended for their "extreme bravery".

He added: "This incident could have been significantly worse if not for the swift and selfless intervention of these officers – actions which may well have saved the life of Duncan-King and others."

More than £11,000 worth of damage was caused to the floor, computer equipment and furniture because of Duncan-King's reckless actions.