A loud explosion has been heard in the southern suburbs of the Lebanese capital Beirut, leaving at least 38 people injured.The blast occurred in the suburb of Bir al-Abed on Tuesday, sending black smoke billowing into the sky and causing reportedly heavy damage. Several cars and buildings were on fire in the wake of the blast. The bomb attack is the second strike to hit southern Beirut this year. In January, two people were injured after a bomb went off in the suburb of al-Selloum, south of Beirut. The bomb was planted underneath a car belonging to a member of the Lebanese resistance movement of Hezbollah. Back in May, two rockets hit the area. Also, Lebanese security forces have disarmed several rockets near Beirut in recent months. In December 2012, a car bomb attack in the capital claimed the life of the intelligence chief of Lebanon's Internal Security Forces, General Wissam al-Hassan.