Armed police rushed to the scene where shots were heard and authorities urged Londoners on Twitter to “run, hide, tell” if they were caught in the attack. The BBC cited police as saying there had been more than one fatality.

Six people died and nearly 50 were injured when a terrorist attack unfolded in the heart of the British capital on Saturday night.

Officials said a vehicle barreled into pedestrians on London Bridge, and then three attackers embarked on a stabbing rampage at nearby Borough Market.

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