Afghanistan's Interior Ministry spokesman says a suicide bomber has killed six policemen after exploding his devise amid a group of security officials monitoring protests by shopkeepers in eastern Kabul. The attack targeted an anti-drug raid close to the US Embassy. The bomber blew himself up inside a Shi'ite Muslim cultural center in the city.
All of the dead were police.
Wahid Mujro, a spokesman for the Health Ministry, said 15 wounded were treated at Kabul hospitals.
A security source who spoke to AFP on the condition of anonymity said 20 people had been killed and 20 wounded in the attack, but that higher toll could not be immediately confirmed.
The blast stripped bark from trees and shattered windows of nearby apartments, underscoring the devastating force of a single suicide bomber.
In December alone IS claimed three attacks that killed dozens of civilians.
No one has so far claimed responsibility for the bombing but both Taliban insurgents and the Islamic State group's affiliate in Afghanistan have targeted the country's security forces in the past.
On Wednesday, Afghanistan's spy agency announced it had busted a 13-member IS cell in Kabul that had been hatching "a series of big terrorist attacks" in the city.