LAS VEGAS (KLAS) – The man convicted for making a bomb that killed another man outside a Las Vegas Strip resort escaped from prison Tuesday, sources told Nexstar’s KLAS.

Porfirio Duarte-Herrera, 42, was serving a life sentence without the possibility of parole at the Southern Desert Correctional Center after he was convicted of murder, records showed.

Corrections officers determined Duarte-Herrera was missing at 7 a.m. Tuesday, officials said in a news release. A search for him began around 8 a.m.

Porfirio Duarte-Herrera, 42, is serving a life sentence without the possibility of parole for murder at the Southern Desert Correctional Center, records showed. (NDOC/KLAS)

It was not until 1 p.m. that Nevada Department of Corrections officials issued a news release on the matter, confirming the 8 News Now Investigators’ earlier reporting.

Duarte-Herrera is described as being 5 feet 4 inches tall and weighing 135 pounds. He has brown hair and brown eyes.

The crime scene as seen from above the parking garage. (KLAS)

Duarte-Herrera and another man were convicted in 2009 for the killing of a 24-year-old man who died when a bomb hidden in a coffee cup exploded. The incident happened inside a parking garage at the Luxor hotel in 2007.

A spokesperson for Las Vegas Metro police said the department was aware of the missing convicted murderer, and officers were being vigilant.

U.S. Marshals were also assisting in the search.