A man is to appear in court charged over attacks on four police officers who were stabbed and wounded, police said.
Christopher Houghton, 32, of Milford Gardens, Wembley, north London, will appear in custody at Westminster Magistrates' Court in London.
Four policemen were stabbed on Saturday as they tried to arrest a man who had grabbed a 12in knife from a butcher's shop.
Houghton faces three counts of attempted murder of a police officer, two of attempted grievous bodily harm on a police officer, one of assault causing actual bodily harm on a police officer, one assault on police and one of affray, Scotland Yard said.
The drama brought chaos to Kingsbury, in the suburbs of north west London, on Saturday morning.
Eyewitnesses told how police chased a man down the road and in and out of shops before he grabbed a knife.
All four policemen were taken to hospital.
On Sunday night two officers remained in hospital, in serious but stable condition.
One is aged in his 20s, with three years' service, who sustained a stab wound to the stomach, while the other is in his 20s with six years' service who sustained head injuries and a stab wound to the arm.
An officer in his 30s with five years' service who received a stab wound to the leg and a fourth in his 20s with eight years' service who sustained a broken hand and a broken thumb have now been discharged.