Police on Thursday said they have arrested another man over the death of a mainland university student whose body was found in a village street on Saturday.

The man, 25, has been charged with preventing the lawful burial of a body.

The latest arrest brings the total number of people detained over the case to four.

The three men who were arrested earlier were also charged with preventing the lawful burial of a body. Two of them faced manslaughter charges as well, and one was charged with trafficking in dangerous drugs. They remain in custody following their appearance at the Fanling Magistrates' Courts.

The police earlier alleged that the student’s body was dumped in an open area in Fanling Wai by a group of five men after he was injected with methamphetamine and passed out at a party.