Selangor police chief Hussein Omar Khan said the pills were seized from the victim’s house in Subang Jaya and sent to the health ministry to identify their type and purpose.

“We must consult specialists to determine whether these are regular medications or something else. In addition, we will seek the assistance of the ministry’s pharmacists.

“We will also seek the assistance of the Japanese embassy, if required (to help identify the medicines taken by the victim),” Bernama reported him as telling reporters in Banting today.

Asked whether the victim had been treated for depression, Hussein said the matter is still being investigated.

He said police have recorded statements from six individuals, including Ridzuan and his son.

The other four are hospital staff involved in the post-mortem and those present at the scene when the body was found.

“The case is still being investigated as sudden death and we are looking into whether the victim had depression or other medical issues,” he said.

Previously, Subang Jaya police chief Wan Azlan Wan Mamat was reported as saying the victim, in her 50s, was found dead, lying face down, by police officers who arrived after receiving an emergency call.