Measures to tackle knife crime will be announced next week following recent stabbings in London and the Midlands, the prime minister has said.
Gordon Brown said the attacks were "shocking and tragic".
He promised a "cross-government youth crime plan" would be published.
On Thursday four men were stabbed to Bush winds up tour of Europe ...
Brown lauds Bush's lead on terrorism ... death in London and a fifth died after a stabbing in West Bromwich.
A man stabbed in north-west London on Friday is critically ill.
In a written statement Mr Brown said he had spoken to Metropolitan Police commissioner Sir Ian Blair about the stabbings in London.
"I know the police are doing everything in their power to bring those responsible to justice," he said.
"The terrible stabbings that have occurred this week are shocking and tragic, and my thoughts are with the families and friends of those who have been hurt or killed in these attacks," he added.
Earlier Sir Ian said the recent spate of stabbings "graphically illustrates the need for everyone to pull together to put an end to this unacceptable violence".
(BBC)
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