REPUBLIKA.CO.ID, BEIRUT -- After almost 17 months of calm, Lebanon's capital Beirut was again the scene of suicide bombings with more casualties than the previous series of attacks.

A twin suicide bombing occurred on Thursday evening in the most popular and busy street of Burj el-Barajneh, southern suburbs of Beirut that was the heartland of Hezbollah, leaving at least 43 people killed and more than 239 injured.

The Islamic State (IS) group claimed responsibility for the attack on its Twitter account, vowing "more attacks against Hezbollah."

The southern suburbs of Beirut have been targeted by suicide bombers since July 2013 in retaliation to the engagement of Hezbollah in the Syrian crisis.