KHOST, Afghanistan, Jan. 8 (Xinhua) -- At least one civilian was killed and 26 others wounded after an explosion ripped through a road in Khost, a city in eastern Afghanistan, on Tuesday, officials said.

"An improvised explosive device (IED) attached to a motorcycle was detonated near the city main mosque roughly at 11:30 a.m. local time, causing panic among the residents," a police officer on condition of anonymity told Xinhua.

Security forces have cordoned off the area for precautionary measures in the city, which is capital of Khost province.

Dr. Ahmad Shah, acting head of provincial health department, told Xinhua that one dead body and 26 wounded people were admitted to hospitals in Khost city following the incident.

The official added that the number of casualties may change as several injured people sustained serious wounds.

No group has claimed responsibility for the attack yet.