According to the local government officials, the airstrike was carried out early on Thursday morning targeting a gathering of the militants in Torkhel area, Khaama press reported.
The provincial Governor Spokesman Ataullah Khogyani confirmed that the militants killed in the air raid belonged to Haqqani terrorist network.
In the meantime, a security official said a commander of the militants was also among those killed in the airstrike.
The official further added that the militants had key role in a deadly attack on Afghan Local Police (ALP) forces check post in Jalrez district two weeks ago.
The anti-government armed militant groups have not commented regarding the report so far.
Wardak is among the relatively volatile provinces where anti-government armed militant groups are actively operating in a number of its districts and frequently carry out insurgency activities.