LASHKAR GAH, Afghanistan, Jan. 27 (Xinhua) -- One assailant was killed and three people injured when a suicide car bombing struck a security checkpoint in Afghanistan's southern province of Helmand on Saturday, sources said.
"The assailant died on the spot and two army soldiers and a civilian wounded after a joint security forces' checkpoint, Qari Posta, came under attack by the suicide bomber at round 11:30 a.m. local time in Nad Ali District," a provincial security source, who requested anonymity, told Xinhua.
Omar Zwak, provincial governor spokesman, confirmed the incident, saying "a probe is on to find more facts about the incident and details would be made public later in the day."
Several warning shots were fired by the security forces after the explosion in the district, west of provincial capital of Lashkar Gah city.
Security forces have cordoned off the area for precautionary measures.
The blast caused a plume of gray smoke to rise above the scene.
No group has claimed responsibility for the attack yet.
On Friday, two policemen were killed and one dozen people injured in a Taliban suicide car bombing in neighboring Kandahar province.
