Donald Trump said it was "very dangerous" for Britain to deal with China, as Prime Minister Sir Keir Starmer continued his visit to Beijing.
The US president was reacting to agreements announced after Sir Keir met Chinese President Xi Jinping as part of a three-day trip aimed at resetting relations between the UK and China.
The agreements are aimed at increasing business and investment between the two countries.
"Well it's very dangerous for them to do that," Trump said at the premiere of a documentary about his wife Melania when asked what he thought of Britain increasing business ties with China.
The comment comes after Sir Keir said the UK's relationship with China was in a "good, strong place" following his meeting with Xi at the Great Hall of the People on Thursday.
