Explosion heard in remote Hizbullah stronghold in southern Lebanon

Lebanese security officials say that an explosion went off in a remote Hizbullah stronghold in southern Lebanon but it was not clear if members of the group were targeted. One officials said the explosion outside the town of Jezzine did not cause casualties and that the cause of blast was not known. The Jezzine area is known to have many mines and cluster bombs left behind from the Second Lebanon War.