Earlier, organizers said all morning meetings at the summit had been delayed after protesters blocked traffic around the hotels where delegates were staying and amid clashes between anti- and pro-government groups. There were unconfirmed reports of protesters carrying guns.

Chinese Premier Wen Jiabao was scheduled to meet with the leaders of the 10-member Association of Southeast Asian Nations on Saturday morning. That was to be followed by meetings between ASEAN leaders and the president of South Korea, and later with Japan's prime minister.

A breakfast meeting of the foreign ministers from Japan, China and South Korea was also canceled.

After the protesters broke into the convention hall, a reporter saw at least three people with cuts from the glass and blood on the floor.

Panitan said protesters have been warned that "very tough standards will be applied to them very soon."