Three people have been arrested after a man was killed in Tottenham early this morning.
It's believed he was stabbed to death in a fight - which left two others injured.
Ronke Phillips reports.
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In a wide-ranging Peston on Sunday interview, he said Parliament security needs reviewing and the PM's counter-terror strategy is flawed.
The terror attack carried out by Khalid Masood at Westminster that left four people dead lasted less than two minutes say police.
Two knives were found at the scene in Islington, North London, and the suspects fled on foot before being arrested.