At least five intelligence officers were killed and four others injured after a Taliban suicide car bomb struck their motor convoy in western part of capital city Kabul on Thursday morning, police said.
"The incident occurred roughly at 4:45 a.m. local time in Bagh-i-Davod neighborhood. The whole place has now been sealed off and the massive blast also damaged several vehicles and nearby houses and shops," witness Mohammad Shafiq told Xinhua.
Hashmat Stanikzai, a Kabul police spokesman, told Xinhua that further details will be shared with the media later in the day.
"The casualties were shifted to hospitals by ambulances and military vehicles," the witness added.
A thick black smoke was seen rise above the site and military helicopters were hovering at the area after the explosion.
The Taliban militant group claimed responsibility shortly after the attack.
The capital city with a population of nearly 5 million has been hit by series of terror attacks over the past couple of years.
On Sunday, 23 people were killed and 107 others wounded after an Islamic State (IS) terrorist detonated his explosive jacket at a crowded traffic circle outside the capital's airport after a convoy of Afghan vice president passed the area.