Attorney-General Abdul Gani Patail has classified the case involving A Kugan, the 22-year-old detainee who died in police custody on Tuesday, as murder. It is learnt that investigations are underway on the matter.

Earlier today Inspector General of Police Musa Hassan said that a full investigation will be carried out into Kugan's death.

He said that a thorough probe would be undertaken although the post-mortem report found that Kugan had died due to fluid in his lungs.

"We will not cover up anything," he told reporters in Kuching.

Kugan was arrested on Jan 15 in Kajang in connection with several car theft cases. Five days later he died at the Taipan while being questioned.

His death resulted in a vocal public outcry which resulted in his burial being deferred by his family so that a second post-mortem could be done.

His family is presently lying at the University Malaya Medical Centre.

It is learnt that the police has refused permission for the family for a second post-mortem.

The family's lawyer Gobind Singh told Malaysiakini that he would seeking a court order in Wednesday to compel the authorities to conduct a post-mortem.

The family has also submitted a memorandum to the IGP at federal police headquarters in Bukit Aman today, urging for action to be taken against the police personnel responsible for Kugan's death.

At the same time, a separate police report has been lodged against the family members for barging into the Serdang Hospital morgue on Tuesday night to see Kugan's body.

Responding to this, Musa said that Kugan's family members should not have gone into the mortuary to view the body as it could be considered tampering with evidence.

"This should not have happened and we will also investigate it as a report has been lodged," he said.

The police said yesterday they would take statements from two deputy ministers who were present when the crowd barged into the mortuary.