The United States expressed its opposition Wednesday to Japan's unofficial proposal to invite China to the Group of Eight major nations' summit in Okinawa in July, Japanese officials said.

Undersecretary of State Thomas Pickering told Liberal Democratic Party Secretary General Yoshiro Mori that China is not keen to attend the Okinawa summit.

In a meeting with Mori at the U.S. Embassy in Tokyo, Pickering was quoted as saying that briefing China, South Korea and Australia after the summit would be an important measure that Japan could take.