KABUL, Dec. 26 (Xinhua) -- Two police officers were killed and two police officers and a civilian were wounded in three separate explosions in Kabul, capital of Afghanistan on Saturday, the latest in a string of bomb attacks in the city, the capital police confirmed
Two improvised explosive devices (IEDs) hit two Ranger-type police vehicles in Police District (PD) 3 and PD 6, destroying one vehicle and severely damaging the other during morning rush hour, Kabul police told reporters via a text message.
One IED was detonated outside a traffic police stall in PD 8, causing no casualties but leaving destruction.
No group has claimed responsibility for the attack so far.
On Tuesday, a civilian and four employees of the country's main prison, including two female doctors, were killed and two civilians were wounded in an improvised bomb explosion in PD 7.
On the same day, an army colonel and teacher of the Kabul military university was shot and killed by gunmen in PD 12.
