Blanchard, OK – A man injured in an explosion that destroyed his home in McClain County remains hospitalized in critical condition while a woman injured in the blast has improved.

The condition of a 2-year-old injured in the blast was not released by the Dallas hospital where she was taken in critical condition. A spokeswoman said Monday the hospital doesn’t have parental consent to release the condition of Bella Summer.

A spokeswoman at Integris Baptist Hospital in Oklahoma City says 68-year-old Richard Hoff remains in critical condition and 25-year-old Tanya Summer is now listed in serious condition.

A preliminary investigation indicates the Sunday morning blast near Blanchard was caused by a propane leak.