Police say they are still trying to identify a man 11 days after he was found hanged in a disused railway building in Crewe.
British Transport Police (BTP) said they believe he was originally from Poland and may only have been in the UK for a short while.
He had visited Manchester and made some contact with the Polish community there, the spokesman said.
His death is not thought to be suspicious, BTP added.
Det Sgt Glenn Lee said it was likely that whilst in Crewe he also sought out members of the Polish community.
He was found in the building in Tommy's Lane on 11 February.
He said: "I appeal to anyone who recognises the artists' impression of the man to come forward and speak to us.
"He must have family somewhere, whether in the UK or in Poland, and they have the right to know what has happened."
Anyone who recognises him is asked to contract BTP.