Kampar police chief Nazri Daud said police received a report that a 56-year-old woman had been stabbed by her brother at about 7.35pm.

He said an investigation found that the incident occurred in the living room of a house occupied by the suspect and the two victims – his son and his younger sister.

“The 22-year-old son was stabbed three times in the left side of the neck, while the sister was stabbed once in the same area.

“Both victims are in critical condition and are receiving treatment at Permaisuri Bainun Hospital,” Bernama reported him as saying.

Nazri said the 58-year-old suspect, who is unemployed, sustained an injury to his left palm.

He said the man had previously undergone psychiatric treatment at Fatimah Hospital in Ipoh and has since been referred to Hospital Bahagia Ulu Kinta.