A sixth person has been arrested in connection with the murder of Latvian man Vasilijs Ransevs, who was found dead at his house on Portland Street in Lincoln in June.
On Monday, police also arrested 29-year-old man, a 31-year-old man, a 17-year-old woman and a 20-year-old man in connection with the murder.
Vasilijs Ransevs (33) was originally from Latvia. He had been living in Lincoln for about two years and lived in Peterborough before that.
Detective Superintendent Stuart Morrison said: “Local officers will be patrolling the Portland Street area and anyone with any concerns, or anyone who wants to pass on any information should approach them and talk to them.”
Anyone with any information can call Lincolnshire Police, quoting incident number 178 of June 16, or call Crimestoppers anonymously on 0800 555 111.