Police have urged the public not to approach 64-year-old John Massey, a convicted murderer who escaped from Pentonville prison earlier this evening.
Massey was sentenced to life imprisonment for the murder of a man at a pub in Hackney, East London in 1975.
Police are appealing for help in tracing a convicted murderer who has escaped from HMP Pentonville.
He is considered potentially dangerous and should not be approached by the public if he is seen."
More top news
The head of GCHQ has announced he is to step down as head of the intelligence agency for personal reasons.
A woman who plotted to let a paedophile rape her seven-year-old daughter has been jailed for nine years.
The main opposition has said it is unhappy at the offer of asylum for Yahya Jammeh who had refused to step down as president.