Google has dropped 2,500 YouTube channels linked to China.

Google said it had removed more than 2,500 YouTube channels allegedly linked to China,media reported. The Alphabet-owned company said the channels were removed between April and June “as part of an ongoing investigation into the collaborative influence of the operation.”

In a quarterly briefing on the operation of disinformation, the company said the channels typically publish junk, non-political content, but a small part of it is political.

But Google did not specify the specific channels and gave no other details, saying only that the videos were linked to similar activities discovered by Twitter and the disinformation activity discovered by graphika, a social media analytics company, in April.

The announcement also referred to activities related to countries such as Iran and Russia.

Google has dropped 2,500 YouTube channels linked to China.