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Rice said President Obama was also looking forward to the G20 summit and the meeting with Xi.

Investigators said they will work to identify whether the driver's intoxication was linked to the cause of the deadly fire.

"The 2030 Agenda reaffirms that every state has, and shall freely exercise, full permanent sovereignty over all its wealth, natural resources and economic activity," he said. "It also reaffirms the commitment to international law and emphasizes that the Agenda is to be implemented in a manner that is consistent with the rights and obligations of states under international law."

He also pointed out that the two countries should strengthen customs and quality control so as to increase convenience of port customs clearance, improve people-to-people exchanges in cultural, media and educational fields, and promote cooperation in defense and law enforcement in order to maintain regional security and stability.

All parties at the summit should work to build an innovative and open world economy to generate new drivers of growth and expand the scope of development, Xi said in a keynote speech at the opening ceremony of Business 20 summit in the eastern Chinese city of Hangzhou.