HUTCHINSON Kan. — The Hutchinson woman injured in a house explosion last week remains in critical condition.

Forty-seven-year-old Theresa Kappel was taken to St. Francis Hospital in Wichita following the explosion and fire that engulfed her home last Thursday.

Hutchinson Fire Chief Kim Forbes says they still are not entirely sure what caused the explosion, but are still leaning toward a loose gas line fitting.

Forbes says they may never know the exact cause and are still not able to speak with Kappel.