China sanctions 10 U.S. firms over Pentagon blacklist, escalating tensions amid ongoing trade and defense disputes with the U.S.

China announced sanctions on 10 American military-linked companies and widened curbs to 46 firms. The move escalates the latest US-China tech and defence trade confrontation.

The new export controls come "in response to the US government's egregious act of adding to its so-called 'Chinese military enterprise list'", said China's commerce ministry.