ANOTHER inmate from the New Bilibid Prison (NBP) in Muntinlupa City may have escaped as he was missing from his cell on Tuesday, the local public information office (PIO) said.

Muntinlupa City information chief Tez Navarro said Chris Candas Ablas was not in his cell at N217P-4392 of Dorm 8C-2. He was convicted of robbery and homicide and was sentenced to reclusion perpetua or lifetime imprisonment without parole.

Ablas was tagged as the fourth person deprived of liberty (PDL) involved in the prison escape incident on Monday, where at least three inmates bolted the NBP's Maximum Security Compound (MSC).

She said the MSC was on lockdown status while manhunt operations were underway to recover Drakilou Yosores and Ablas.

Two others, Arwin Bio Villeza and Pacifico Adlawa, were killed in a shootout with joint elements of the Philippine National Police (PNP) and Bureau of Corrections (BuCor) on Monday.