KABUL -- At least four Afghans were killed on Monday (June 3) when a roadside bomb tore through a bus in Kabul, an official said, marking the second consecutive day that attackers have targeted a bus.
The vehicle was taking workers home from a government regulatory agency ahead of the Eid holidays when the bomb exploded.
The bomb was concealed on a bicycle along the side of the road, Farid Ahmad, a spokesman for the Independent Administrative Reform and Civil Service Commission, told AFP.
"Unfortunately, we have lost four colleagues; nine have been wounded," Ahmad said.
Interior Ministry spokesman Nasrat Rahimi put the toll at five dead and 10 wounded -- all of them civilians.
No one immediately claimed responsibility.
The blast comes a day after two people were killed and dozens more wounded in Kabul as a wave of bombings hit civilian targets -- including a university school bus -- in Kabul.
"Islamic State of Iraq and Syria" (ISIS) claimed responsibility for those bombings Sunday (June 2).