Two people have been arrested in Co Derry by detectives investigating the murder of a man.
The man's body was found on Creggan Street in the early hours of Sunday morning.
Police received a report shortly before 3.00am that the man had been discovered in an alleyway.
Police say the man sustained "significant injuries to his head and body".
A post mortem examination is to take place to determine the cause of death.
A 35-year-old woman and 51-year-old man were arrested in the city earlier on Sunday on suspicion of murder.
They are currently in police custody.
PSNI Detective Chief Inspector Eamonn Corrigan said: "I am continuing to appeal for anyone who was in the Creggan Street or Little Diamond area of the city late last night or early this morning and who witnessed anything or anyone who has any information that can assist with my investigation to contact detectives".