Many London Bridge attack witnesses 'have yet to speak to police'

Anyone with information can call the police in confidence on 0800 789 321 or visit https://gov.uk/ACT and complete a secure form.

On Saturday, Commander Dean Haydon of the Met's anti-terrorist command said: "Many witnesses we've spoken to have provided extremely helpful accounts of the attack but we are still missing pieces of the picture.

"My officers are particularly keen to hear from anyone who witnessed the white van targeting individuals on London Bridge, saw the suspects attacking members of the public or saw armed police engaging the suspects."

Commander Haydon has also appealed for information about the pink Ernesto-branded ceramic kitchen knives used by the attackers: "We've been working round the clock to understand what these men did in the lead-up to the attack but we need to know more about these unusual knives. Where have they come from? Where might the attackers have bought them from? If you know anything about these particular types of knives, please let us know – it could prove a crucial lead in our investigation."