A man has been arrested on suspicion of money laundering amid a search where the police helicopter was seen hovering above a motorway bridge.

Officers stopped a car just before 7pm last night at junction 2 of the M2 London bound.

One man in the vehicle ran off sparking a police search involving the chopper.

He has not been found.

Another man was arrested on suspicion of money laundering after a short search of the vehicle uncovered a quantity of cash.

The 22-year-old that was arrested remains in custody while inquiries are ongoing.