Human rights group Amnesty International Malaysia has lambasted the police decision to probe news articles on the death of detainee A Ganapathy and asked that if the police were the alleged masterminds behind his death, then why were they the ones investigating the matter.

"Ganapathy has died. His family says he was beaten while under police custody.

"Reporting on the case, talking about the case, demanding a transparent investigation, asking for #JusticeForGanapathy is not disrupting 'public peace'.

"Violence and injustice is the disruption of peace. Ganapathy's family has a right to know what happened. They need to get justice," said Amnesty on Twitter.