A 13-year-old girl is among five people arrested on suspicion of murder after a man's body was found in a country lane.
A 47-year-old woman and three men, aged 31, 27, and 21, have also been arrested by detectives.
Nottinghamshire Police have launched a murder investigation after the man was found in countryside near the village of Everton on Saturday February 2.
A police spokesman said: "All five people have been arrested on suspicion of murder and all are from the South Yorkshire area.
"Officers from South Yorkshire Police have also been assisting the investigation."
A cordon and police guard is still in place where the body was found and forensic examiners are continuing to search for clues.
The results of a post-mortem examination have so far proven inconclusive.
Inquiries are under way to identify the victim and trace next of kin.
Detective Chief Inspector Phil Cox, who is leading the investigation, said: "Although we have made five arrests detectives are continuing to make inquiries in the area.
"We are keen to speak to anyone who might have seen something unusual in the area, particularly between Friday February 1 and the afternoon of Saturday February 2."