An explosion has targeted eastern part of Khost province on Monday, it was reported.
Faridullah Zahir, Ariana News correspondent in Khost province says the explosion was so powerful which was heard around the city and its smoke was visible from very far away.
Eyewitnesses say, the blast was as a result of an explosive-packed vehicle which has targeted an area close to a foreign military base located in Karwan Sarai area of the city.
Officials has not made a comment about the incident.
The target and causalities the blast has left behind is still unknown.
Taliban claims responsibility behind the attack, adding an army point was targeted.
(This is a developing story.)