According to the BBC, police in Thailand have accused a father of killing his two-year-old daughter and his two infant kids by beating them to death.

The authorities believe Songsak Songsaeng also murdered his two other young sons from an earlier union.

The accusations come in response to the discovery last week of a two-year-old girl’s remains buried beneath a kitchen floor.

According to the police, Songsak alleges to have a history of mental illness and that he killed his kids because he couldn’t stand hearing them scream.

His wife has also been charged over the death of their two-year-old daughter. And his ex-wife has been charged over the deaths of the two boys. All three have been arrested. Songsak has been married four times.

Police were first alerted to a possible case of domestic violence at the Bang Khen district in Bangkok earlier this month.

Songsak’s neighbours reported that his two daughters, aged 12 and four, were being physically abused. Police rescued the two daughters while they were home without their parents.

The 12-year-old admitted to authorities that their parents had killed her sister when she was two years old by beating the child. She also assisted authorities in locating the body after it had been discovered last week buried beneath a kitchen floor in northwest Thailand.

Songsak has also been accused by Thai police of murdering two further sons he shared with his third wife after his DNA was found to match that of two children whose bodies were discovered ten years prior.

His third wife had accused him of killing their four young sons and revealed the whereabouts of two of the bodies to the authorities.

Police believe the two others may have been buried under an area where a petrol station now stands.