Cumbria Police are continuing to question six people in connection with a Carlisle murder investigation.
Detectives are investigating the circumstances which led up to a man being attacked and killed at 6am on Sunday 14 October.
Four vehicles have been seized for forensic examination and five premises have been searched.
Anyone who has any information which could assist the investigation should ring Cumbria Police on 101 or speak to a local police officer.
They can also ring Crimestoppers anonymously on 0800 555 111.
– DCI Paul Duhig, Cumbria Police
"“We believe that some members of the Polish community are aware of what happened to escalate a situation which ended in tragic circumstances. We are offering support to any member of the public who has information which could assist in the investigation.
"It is vital that we piece together everything which happened in order to gain a clear picture of the events which unfolded that led to Mr Kunlinski’s death."