The blast happened in Qalai Nazir area, Police District 6 of the city. The area houses also a news agency and a cultural center.
Nai, a media advocacy group, said that the attack targeted Afghan Voice news agency (AVA). Mujib Khelwatgar, CEO of the group, said that the attack left many casualties.
Najib Danish, a spokesman for Interior Ministry, said that the blast was likely triggered by a suicide bomb. He said that most of the casualties were civilians.
The blast left at least 13 killed and 18 injured, Ismail Kawoosi, said a spokesman for Public Health Ministry.
There was no immediate claim of responsibility for the attack.
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Kabul, Dec 28, IRNA/AVA - An explosion rocked Afghan capital Kabul on Thursday, killing at least four people.