A detainee at Welikada Prison has died after reportedly falling from the third floor of a prison building, according to the Prison Department spokesperson.

The deceased has been identified as 28-year-old Supun Tharindu Sunil Rathna, who had been sentenced to death in connection with the murder of former Parliamentarian Amarakeerthi Athukorala.

Prison authorities said the inmate was admitted to hospital following the fall.

However, he later succumbed to his injuries, the Prison Department spokesperson said.

It is also reported that the deceased had already filed an appeal before the Supreme Court of Sri Lanka challenging the death sentence imposed on him by the Gampaha High Court.