China says US high-altitude balloons have flown in its airspace without permission more than 10 times since the beginning of January 2022.
“It’s not uncommon as well for the US to illegally enter the airspace of other countries,” foreign ministry spokesperson Wang Wenbin said during a briefing.
“Since last year alone, US balloons have illegally flown above China more than 10 times without any approval from Chinese authorities,” he added.
Mr Wang, responding to a question at a regular media briefing in Beijing, did not provide further details.
Asked how China had responded to the flights, Mr Wang said China’s response to such incidents was responsible and professional.
“If you want to know more about US high-altitude balloons illegally entering China’s airspace, I suggest you refer to the US side,” he added.
China’s assertion comes after the United States earlier this month shot down what it says was a Chinese spy balloon off the coast of South Carolina.
Beijing says the balloon was a civilian research craft and has accused Washington of overreacting.
The US military has shot down four flying objects over North America in recent days.
The latest incident has raised questions about the spate of unusual objects that have appeared in North American skies in recent weeks and raised tensions with China.