A 16-year-old boy remains in hospital in a critical condition after being stabbed in Haverhill. 

Emergency services, including the air ambulance, were called to a car park next to Strasbourg Square at about 3.05pm on Monday. 

An altercation is reported to have taken place between two teenage boys during which one of them was stabbed. 

According to Suffolk police, the suspect fled the scene and was believed to have run off in the direction of Millfields Way. 

The victim, a 16-year-old boy, was initially taken to Addenbrooke's Hospital, Cambridge, for treatment, before being transferred to the Royal Papworth Hospital. 

He remains there in a "critical condition" having suffered life-threatening injuries, Suffolk police said. 

A 16-year-old boy from the Haverhill area was arrested on suspicion of attempted murder shortly after the incident. He was taken to the Bury St Edmunds police investigation centre where he remains for questioning. 

On Tuesday, officers obtained a warrant of further detention from Ipswich Magistrates' Court granting officers a further 36 hours to question the suspect. 

Officers have until 4.35am on Thursday to continue questioning the 16-year-old. 

Detectives understand that the victim and suspect were known to each other and as such, this is being treated as an isolated incident with no wider threat to the public.

The family of the victim and some key witnesses are being supported by specialist-trained liaison officers. 

A police cordon that was put in place at the Strasbourg Square car park was lifted yesterday (Tuesday) afternoon. 

Anyone with information related to the incident is urged to contact Suffolk police, quoting CAD 210 of January 9.