A car bomb attack on a bus carrying employees of the Ministry of Mines in a predominantly Shi'ite neighborhood of Kabul killed two people on Monday morning, local media reported.
"Twenty-four people have been killed and 42 others wounded in an attack this morning in Kabul when a car bomb exploded on a bus transporting staff from the Ministry of Mines," Interior Ministry spokesman Najib Danish said.
The explosion took place shortly before 0700 hours (0230 GMT) in a mainly Shi'ite neighborhood of Kabul that houses a number of sports clubs, universities, institutes and banquet halls.
A thick column of black smoke rose shortly after the explosion, and ambulances raced while many wounded were taken by taxi and private cars.
The victims appeared to be civilians, including students traveling to their university during the exams, as well as bodyguards for the home of one of the most prominent leaders of the Shi'ite Hazara minority and parliamentarian Mohammad Muhaqiq, his spokesman said.