Officers responded to an incident at the bus stop near Dodwell Lane on the A27, opposite Long Lane, at 1.33pm on Friday, June 20.
It was reported that two men had exited a Seat Ibiza and assaulted a 15-year-old boy.
It is understood the 15-year-old suffered minor injuries.
When police arrived on the scene the Seat was driven towards an officer who was forced to jump out of the way.
The driver then left the scene.
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An investigation was launched and an arrest was made yesterday, June 21.
During the arrest an officer was assaulted.
A police spokesperson said: “A 19-year-old man from Southampton has been arrested on suspicion of driving a vehicle dangerously, failing to stop, assisting an offender and two counts of common assault of an emergency worker.
“He remains in custody while our enquiries continue.
“Officers are continuing to investigate the incident and are appealing for witnesses to come forward.
“Did you witness the incident on Friday? Do you have any CCTV or dashcam footage that could assist our enquiries?
“Anyone with information is asked to contact 101, quoting 44250271558.”
