Police investigating a stabbing in Ipswich have released three people from custody following their arrest on Saturday.

Officers were alerted just before 5am yesterday to reports of a 30-year-old male having been stabbed in the arm in a caravan at Bucklesham an hour earlier.

The victim was taken to hospital for treatment to his injury and left shortly afterwards.

Officers were then called, at 12.25pm, to a second stabbing, which took place earlier inside a premises at Grebe Close.

The same 30-year-old male victim had sustained stab wounds to his bottom and back.

He remains in hospital with injuries not thought to be life-threatening.

Four people were arrested in connection with the incident. A 40-year-old man, a 38-year-old woman and 31-year-old woman were arrested on suspicion of attempted murder in connection with the Grebe Close incident and taken to Martlesham Heath police investigation centre for questioning.

All were released overnight, under investigation pending further enquiries.

A 46 year old man arrested on suspicion of grievous bodily harm, in connection with the incident at the caravan, was also taken in for questioning at Martlesham Heath, where he remains.

Officers believe it was a targeted attack and, as such, there is no wider threat to the community.

Anyone with information on either incident is asked to contact Ipswich CID on 101, quoting crime reference 37/45529/18 for the first incident, and 37/45582/18 for the second incident.