Three policemen were wounded when a roadside bomb when off on Sunday in the Afghan capital Kabul, Interior Ministry said, DPA reported.
An explosive device was hidden in a traffic police cabin in Dehmazang Square, the ministry said in a statement.
"As result of explosion, three policemen were wounded," it said.
Last week, a group of militants stormed one of the luxury hotels in the city in an attack that left 11 people dead.