TEHRAN, Young Journalists Club (YJC) - There was no immediate claim of responsibility for the blast, which follows a wave of deadly attacks across Afghanistan in recent weeks as militants step up assaults amid a flurry of diplomatic efforts to end the 17-year conflict.
Khost provincial governor spokesman Talib Mangal told AFP at least 22 people were wounded in the explosion in the eastern province bordering Pakistan.
A spokesman for the First Brigade of the 203 Army Corps, where the mosque was located, said initial information showed "more than 10" soldiers had been killed and 15 wounded.
Some of the wounded had been transported to a hospital in the provincial capital Khost while four military helicopters also had been dispatched to bring others to Kabul, Defence ministry spokesman Ghafoor Ahmad Jawed told AFP.
It is not clear how many worshippers were inside the mosque at the time of the explosion or the nature of the blast.
Source: Hawzah News Agency