A Phoenix church is nothing but a pile of lumber and now an investigation is underway. The roof totally collapsed at the Faith Believing in God Ministries church near 13th Avenue and Tonto Street Wednesday night. Fire crews arrived and say there was no fire and search dogs were used to find people in the rubble, but nobody was in the church when it fell. Some people who live in the area say they heard an explosion and the blast was so strong it shook their home. It's unclear if the explosion was caused by a gas leak, or the collapse caused the gas leak which may have led to the building blowing up.