Detectives have been given extra time to question three suspects who were arrested after a teenager was murdered in Norwich.

The 19-year-old's body was found at a ground-floor flat in Lefroy Road, Mile Cross, at around 10.40pm on Saturday.

A post-mortem examination found he had died from a single stab wound to the chest and officers believe his body had been left at the flat for around eight days.

A total of five arrests have been made in connection with the murder.

On Wednesday, a man and a woman - both in their 50s - were arrested on suspicion of conspiracy to murder. 

Overnight on Wednesday into Thursday morning, police arrested three others - a man in his 20s on suspicion of murder and supplying controlled drugs, a man in his late teens on suspicion of conspiracy to murder and a man in his 50s on suspicion of conspiracy to murder. 

Following an application to Norwich Magistrates' Court, officers have been granted more time to question the man and woman arrested on Wednesday and the man arrested on suspicion of murder.

All five suspects currently remain at Police Investigation Centres.