A SUSPECTED drug dealer was arrested after a man fled the scene when a car collided with a lamp post near Marsh Mills this morning.
Motorists faced delays in Marsh Mills and Plympton this morning after the incident.
The crash happened on Plymouth Road just outside the McDonalds restaurant.
Police were called to the scene at 9.40am and ambulance crews also attended.
A man was being treated for a possible arm injury, emergency services said.
Devon and Cornwall Police said a 25-year-old man from Plymouth was arrested on suspicion of possession with intent to supply a quantity of illegal drugs.
He is also being investigated for other potential driving offences, a force spokesperson said.
A silver VW Golf registered to a Torquay address was involved in the incident.
Police said one man fled from the scene carrying a bag before he was stopped by the police dog with help from a member of the public.
The vehicle has now been recovered by police.
One lane of the busy route remained blocked until shortly before 12pm.