The Islamic State group takes responsibility for the bombing in Beirut.
The bombing targeted an area in Beirut associated with the Shiite Hezbollah group, which is fighting in the Syrian civil war alongside embattled President Bashar Assad.
The Sunni Islamic State is a bitter rival of Assad.
“In a security operation that pleases Allah, the soldiers of the Caliphate were able to park an explosive bike and blow it up in a crowd of infidels… in the southern Dahieh suburb of Beirut,” IS says in a statement.
The statement later refers to another man waiting for a crowd to assemble before blowing up his suicide vest.