The provincial government media office in a statement said Thursday that a group of militants launched coordinated attack on security posts of the border forces in Spin Boldak, near the Durand Line, late on Wednesday night.
The statement further added that the attack was launched on security posts in Saro Sagan area at around 10pm local time which lasted until 4am on Thursday.
According to the provincial government, the Afghan forces responded to the attack of the militants, leaving at least 7 of them dead and 9 others wounded.
At least two Afghan border police forces also lost their lives during the clashes and five others sustained injuries, the statement added.
The anti-government armed militant groups including Taliban militants have not commented regarding the report so far.
In the meantime, the provincial government says the anti-government armed militants often use their safe havens on the other side of the Durand Line and carry out attacks on the security posts along the Line.