The UK PM stated 74 terror prisoners were released early.
https://www.bbc.com/news/uk-50618744 Boris Johnson has told the BBC that 74 people jailed for terror offences and released early will have their licence conditions reviewed.
The Ministry of Justice launched the urgent review after convicted terrorist Usman Khan, who had served half of his sentence, killed two people in a knife attack at London Bridge on Friday.
The prime minister claimed scrapping early release would have stopped him.
But Labour is blaming budget cuts for "missed chances to intervene".
Friday's attack was brought to an end when police shot Khan dead.
London Bridge attack victim had 'lust for life'
Why was the London Bridge attacker out of prison?
The 28-year-old had been jailed in 2012 over a plot to bomb the London Stock Exchange.
He was given a special jail term known as Imprisonment for Public Protection (IPP), which meant he would serve at least eight years and could not be released unless he had convinced the Parole Board he was no longer a threat.
But in 2013, the Court of Appeal replaced the sentence with a 16-year-fixed term of which Khan should serve half in prison.
He was released on licence in December 2018 - subject to an "extensive list of licence conditions", police said.
'Repulsive'
Mr Johnson told the BBC's Andrew Marr show it was "repulsive" that someone as "dangerous" as Khan could be released from prison after "only serving eight years".He blamed Khan's release on legislation introduced under "a leftie government", insisting the automatic release scheme was introduced by Labour - but was challenged about what the Conservatives had done to change the law over the past 10 years in government.
"Now that I am prime minister I'm going to take steps to make sure that people are not released early when they commit... serious sexual, violent or terrorist offences," he said.
"I absolutely deplore the that fact that this man was out on the streets... and we are going to take action against it."
Mr Johnson said there were "probably about 74 people" convicted of serious offences who had been released early - a figure confirmed by the Ministry of Justice.
The prime minister said action had been taken immediately following London Bridge attack "to ensure there is no threat to the public".