They said the inmate was admitted to the Hospital on July 12 from the Negombo Prison and were under observation of the Prisons security at the Hospital.
He was imprisoned in connection with a heroin related offense.
When the inmate was reported missing last night, the police and the security personnel of the hospital had found him lying dead on the ground early this morning.
The deceased was identified as a 36-year-old resident of Kadirana North, Negombo.
The results of his PCR test are due today.
(Except for the headline, this story, originally published by dailymirror.lk has not been edited by SLM staff)