In recent weeks, the US government has struggled to quell a new diplomatic storm over reports that the American agency had monitored the cellphone of German Chancellor Angela Merkel for more than a decade. Brazil, France and Spain also voiced their outrage over US spying on their leaders.
China Thursday expressed grave concern over reported phone tapping by the US in China and sought an explanation from Washington.
"We have made representations to the US side, and we demand that the US side clarify and explain itself on this matter," Xinhua quoted Chinese foreign ministry spokeswoman Hua Chunying as saying in a press briefing.
