A West Virginia woman has been jailed on murder charges for allegedly starting fires that killed her two young sons.

Molly Jo Delgado, 29, was arrested on March 8 following a six-week investigation into the January 24 fire at her family’s Martinsburg home, according to a media release from the West Virginia State Fire Marshals Office.

Delgado allegedly admitted to setting fires on the beds of her two sons just after 10 p.m., Herald-Mail Media reported, sourcing a complaint filed by Assistant State Fire Marshal George Harms. Delgado then reportedly locked the doors and went across the street to her mother’s house.

Delgado’s husband, who was asleep in the master bedroom of the mobile home, was awakened by smoke. Locked inside of the home and unable to get to the children’s bedroom, the husband opened a window and called out for help.

The grandfather of Delgado’s children heard the call for help. He and his wife attempted to enter the home and find the boys bedroom, but the smoke was too thick.

“I got in there and I couldn’t see, I couldn’t see nothing – at all,” the grandfather told Herald-Mail Media. “I couldn’t find them, I went in there and I couldn’t find them – went in twice.”

Firefighters arrived and had the blaze under control within 10 minutes, but it was too late for the two children, identified by authorities as 3-year-old Delmer Delgado and 5-year-old Justin Delgado Jr.

Both children were found inside of their bedrooms – one boy was on a bed and the other was found in a corner of the room near his bed, Herald-Mail Media reported. Both were pronounced dead at the scene.

Delgado’s husband was taken to a nearby hospital for treatment of smoke inhalation, and later released.

Authorities have not revealed a motive for the alleged crime. Delgado is being held at the Eastern Regional Jail on two counts of first-degree murder and one count of first-degree arson.

[Feature Photo: West Virginia Regional Jail]