General John Nicholson, Commander of U.S and NATO forces in Afghanistan said Saturday they have killed three Afghanistan Daesh leaders so far and if the group appoints a fourth one he will also be eliminated.

Nicholson's remarks came after the Pentagon said late Friday in an statement that Afghanistan’s Daesh leader Abu Sayed had been killed in a U.S drone strike in Kunar province earlier in the week.

Abu Sayed was the third leader of Afghanistan’s Daesh. Before him, Hafiz Sayed and then his successor Abdul Hasib were also killed by Afghan and foreign forces.

Abu Sayed was appointed as Daesh leader in Afghanistan just over three months ago.

“When the fourth ISIS-K Emir is named, we will kill him too. And so we will keep killing the leaders of ISIS until they are gone,” said Nicholson.

According to Nicholson, most Daesh fighters in Afghanistan are foreigners. He said they had to be eliminated. 

Nangarhar and Kunar provinces are the regions where Daesh are most active in the country although the group has recently emerged in northern Jawzjan province.

Nicholson said they also have carried out operations in Jawzjan to eliminate Daesh militants.

“We have done strikes against ISIS across the country primarily in southern Nangarhar and Achin district, but also in Kunar and even in Jawzjan. So where ISIS-K emerges  as they try to escape from our reach, we find them and kill them. And we will keep this up until they are eliminated. Many of these fighters are from outside of the country, they are not Afghans. ,” Nicholson added.

There has been reports that Russia was supporting Taliban in a bid to secure northern borders but NATO's Secretary General Jens Stoltenberg had said there was no proof in this regard.

“We have seen reports, but we haven't any proof, any confirmed information about that kind of support and Russia has clearly stated that they are not supporting Taliban,” Stoltenberg said. 

Afghan and foreign forces have been fighting Daesh militants amid an ongoing war against the Taliban.