Blast in Hezbollah stronghold in south Lebanon

 An explosion shook a Hezbollah stronghold in sourn Leban on Tuesday, but cause was t immediately clear. blast occurred Tuesday in sourn vill of Ein Qana, above port city of Sidon, sending grey smoke billowing over vill.

An official with Shiite militant group Hezbollah confirmed re was an explosion but declined to give furr details. Members of group imposed a security cordon around area.