Residents reported hearing shots and seeing casualties taken away in Barking after armed police raided the home of one of the suspected London attackers on Sunday.
12 people were arrested in a block of flats.
As officers continued to search addresses in that part of the capital, the city’s Mayor Sadiq Khan condemned Saturday night’s attack.
“There aren’t words to describe the grief and anger that our city will be feeling today. I am appalled and furious that these cowardly terrorists would deliberately target innocent Londoners and bystanders enjoying their Saturday night.” There can be no justification for the acts of these terrorists and I’m quite clear, we will never let them win, nor will we allow them to cower our city or Londoners,” Khan said.
But President Donald Trump has criticised Khan. He sarcastically tweeted,’‘ At least 7 dead and 48 wounded and the Mayor of London says there is “no reason to be alarmed!”