Police are searching for two men after a 25-year-old man was kidnapped at a "busy" bus stop.
The man was grabbed by a group of males as he waited for a bus in Station Road at the junction with Manor Park Crescent, in Edgware.
They allegedly shouted they were police and forced him along Manor Park Crescent.
He was then assaulted and bundled into the back of a dark coloured Ford Fiesta Zetec which had stopped by the side of the road.
The car drove off and turned into Station Road. Three suspects left the scene on foot along Manor Park Crescent.
The vehicle was traced to an address in Sheffield, after officers from South Yorkshire Police made enquiries at an address on April 8 and found the victim and four males inside.
Four men aged 19, 22, 26 and 29 were arrested and have since been charged with kidnap.
The victim was treated in hospital and has now been released.
He had various facial and head injuries and also suffered a bleed on the brain.
Police are now trying to trace two more men in connection with the kidnap.
Detective Sergeant Andrew Cook from Barnet CID, who is lead the investigation, believes the attack was “carefully planned”.
He said: "The incident happened in a busy street just off the main road in Edgware. There were passing members of the public and other vehicles in the area.
"The suspects appear to have carefully planned this attack and are alleged to have shouted 'police' when grabbing hold of the victim.
“All the male suspects involved are believed to be aged between 20-35 years and of an east European appearance. Were you there? Did you see or hear anything suspicious?."
Anyone with information is asked to call police 0208 733 5836 or 101.
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