Organizers of the Shanghai World Expo say operations at the Park went smoothly on opening day.

Director-general of the Bureau of Shanghai World Expo Coordination, Hong Hao briefed the media.

He says the Expo Park welcomed more than 200 thousand visitors on Saturday.

Over 13-hundred were International V-I-P guests. More than 45-hundred volunteers are on duty.

Hong Hao also says the bus congestion alongside the Chinese Pavilion during the trial runs has been solved.

The Pavilion is proving to be one of the most popular venues.