After a raid in north London which saw a woman shot and injured by officers, police now believe they have thwarted an active terror plot.
Six people were arrested during the operation in Willesden on Thursday evening (April 27), including five at or near the address in North London and one person at an address in Kent.
Firearms officers fired CS gas into the property, which was under observation as part of a current counter-terrorism operation.
The arrests came just hours after police swooped on a man carrying a bag of knives in Whitehall, a stone's throw from Downing Street.
A woman in her 20s was shot during the Willesden operation and has been taken to hospital, but she remains under police guard. She is in a serious but stable condition.
Deputy assistant commissioner Neil Basu, senior national co-ordinator for counter terrorism policing, said: "Due to these arrests that have been made yesterday, in both cases I believe that we have contained the threats that they pose."
Journalists then asked whether police had foiled an active plot, to which he replied: "Yes."
He added that no further details about the plot could be released as it is a live investigation with people under arrest who will be interviewed by detectives.
Searches are currently ongoing at three London addresses.