A man has been arrested on suspicion of attempted murder after a teen was found with stab wounds in his back.

The 18-year-old was discovered in the early hours of Sunday, November 10 and police launched an investigation after being called at 1.10am.

He was taken to hospital in a serious condition, also with wounds on his wrist believed to have been caused by a knife, but has since been discharged.

READ MORE: Attempted murder arrest after Hill Lane, Southampton attack

Now, a 38-year-old man from London has been arrested in Croydon on suspicion of attempted murder.

He has been released from police custody on conditional police bail while officers gather more evidence.

A 17-year-old boy was also injured in the incident and is no longer in hospital.

Police have also arrested a 35-year-old woman from Southampton on suspicion of assisting an offender. She has been released from police custody under investigation.

This comes as police relaunch their appeal for witnesses - and want to speak to those in the car pictured.

A spokesperson for Hampshire Constabulary said: "We are keen to hear specifically from anybody who was in Sony’s Bar, Shirley Road, between 7pm and 11pm on the evening of Saturday 9 November.

"If you were in Sony’s Bar and witnessed any altercations, or any behaviour that seemed suspicious, we would like to hear from you.

"We would also like to trace the owner of a red car, pictured, which was travelling along Hill Lane at 1am on Sunday 10 November.

"We appreciate that these images are not of the best quality, and we are carrying out further enquiries in order to obtain clearer images.

"We believe the occupants of this vehicle may have seen something significant and we are really eager to hear from them."

Speaking at the scene at the time, Southampton residents described their shock at the stabbing.

A resident of Milton Road, who wished to remain anonymous said: "I came out of my flat and my neighbour was telling me someone had been assaulted.

“It is usually a pretty quiet road but to hear someone has been attacked is awful."

A 17-year-old boy was previously arrested on suspicion of attempted murder.

He has been released from the investigation with no further action to be taken against him.

Anyone with information can call 101, report on the police website or contact Crimestoppers anonymously on 0800 555 111 or crimestoppers-uk.org quoting 44240489487.