Police have arrested the parents of Zayn Rayyan Abdul Matiin - the six-year-old autistic boy who was murdered in December.

Selangor police chief Hussein Omar Khan confirmed this to Malaysiakini, saying that the arrests were made after police found new leads in the case.

"I confirm that police have arrested the parents. We are applying for remand orders for them this morning.

"They were arrested based on intelligence that police have been gathering since the day of the incident.

"The parents were arrested to facilitate the investigation," he told Malaysiakini.

Selangor police chief Hussein Omar Khan

According to Hussein, the case is still being investigated under Section 302 for murder.

Several news outlets reported that police picked up the boy's parents in Puncak Alam yesterday morning.

Zayn Rayyan, a six-year-old boy with autism, was found dead by a river about 200m from his home in Damansara Damai, Petaling Jaya, about 10pm on Dec 6.

His body was discovered by a member of a search party formed to find the boy, who reportedly went missing on the afternoon of Dec 5.

Police initially suspected that the boy had drowned, but reclassified their investigation to murder after a post-mortem revealed that he was strangled.