China's foreign ministry says it has lodged a complaint with the US after President-elect Donald Trump spoke to Taiwan's leader in a phone call.

Axar.az informs, China sees Taiwan as a breakaway province. US policy set in 1979 cut formal relations with Taiwan. Mr Trump's transition team said he and Tsai Ing-wen noted "close economic, political, and security ties".

The US is Taiwan's most important ally and provides Taiwan with sufficient weaponry to defend itself. China said it had lodged a "solemn representation" with Washington. According to the state news agency Xinhua, China urged the US "to cautiously, properly handle Taiwan issue to avoid unnecessary disturbance to Sino-US relations".