The Trump administration imposed sanctions on the Chinese military on Thursday for buying fighter jets and missile systems from Russia, in breach of a sweeping U.S. sanctions law punishing Moscow for meddling in the 2016 U.S. election.

The U.S. State Department said it would immediately impose sanctions on China's Equipment Development Department (EDD), the branch of the Chinese military responsible for weapons and equipment, and its director, Li Shangfu, for engaging in "significant transactions" with Rosoboronexport, Russia's main arms exporter.

The sanctions are related to China's purchase of 10 SU-35 combat aircraft in 2017 and equipment related to the S-400 surface-to-air missile system in 2018, the State Department said.