WICHITA, Kan. -

A mother has died from injuries sustained from a home explosion in western Kansas.

It happened in Plymell, Kan. near Garden City, about a quarter mile east of Highway 83 June 28. Emergency crews arrived to find the home leveled.

Spencer Unruh, 17, died in the blast. His mother, Kelly Unruh, and a 14-year-old brother, Riley Unruh, were flown to Wichita for treatment. Riley died from his injuries July 9. Via Christi hospital officials confirmed Tuesday Kelly had passed away.

Garden City Fire Chief Allen Shelton said the explosion was caused by a concentration of natural gas. It is being investigated as an accident.

Funeral arrangements are pending. Memorials may be given to the Unruh Family Memorial fund in care of Price and Sons Funeral Home of Garden City.