Investigators look for cause of deadly blast

Investigators are sifting through what remains of the brick home in southeastIowa that exploded yesterday afternoon. At least seven people died and sixwere injured in the blast in Richland, which is near Ottumwa. The homeowners were hosting a “home decorating” party. State Fire Marshall RoyMarshall headed to the scene this morning.The home had a gas grill in the kitchen, but authorities haven’t determinedthe cause of the explosion.