(CNN)A British national who traveled to Syria to fight against ISIS says he and two dozen other foreign fighters are now battling Turkish forces over territory in the country.
Foreign fighters in Syria turn their weapons on Turkey
One of the foreign fighters, 24-year-old British national Huang Lei, told CNN that about 25 people from the West were currently in northern Syria's Afrin region helping the People's Protection Units (YPG) hold on to land, as Ankara tries to seize it from the Kurdish group's hands.
Another six foreign fighters, including one with an American-sounding accent, were seen in a YPG video posted on social media, preparing to travel to Afrin to fight.
An official from the Syrian Democratic Forces, an alliance in which the YPG fights, said that US, British and German citizens were among the "tens" of fighters in Afrin, Reuters reported.
CNN exchanged messages with Lei via his Weibo social media account on Wednesday. CNN could not independently verify his claims.
Lei, from the northern English city of Manchester, claimed he was fighting ISIS in another part of Syria just days ago, he told CNN from Afrin.
"I came here to defend the people of Rojava from terrorism," he said, referring to an expansive northern Syrian region.
"It makes no difference if the aggressors are (ISIS) or the Turkish military. In Afrin, Turkey knowingly targets civilian buildings such as hospitals."
With ISIS on the brink of er