4 hurt in California hot air balloon explosion

Officials said the explosion and crash-landing of a hot air balloon over Southern California wine country left four people hospitalized, one with severe burns. The Riverside County Fire Department said the balloon was carrying five people when it went down Saturday morning in vineyards near Temecula. It was not immediately clear whether the explosion occurred before or after the balloon hit the ground. Fire officials said one person was severely burned. Two others had serious injuries, one had minor injuries and one person walked away safely. Names and details about those on board were not immediately released. The National Transportation Safety Board was investigating the incident. Hot air balloons often dot the sky on weekends in the area 60 miles north of San Diego.