Donald Trump has ordered the government to stop using artificial intelligence systems developed by Anthropic. The decision was announced on social media. It follows a standoff between Anthropic’s chief executive and the Ministry of Defense.

Details of the order were not immediately provided. It is not clear which government departments are affected. The timing of the halt has also not been specified.

The move comes after tensions between the company’s leadership and the Ministry of Defense. The nature of the disagreement has not been outlined. No further information has been released about how long the suspension will last or what steps may follow.