XI'AN - The wall of a shopping mall collapsed in Xi'an, capital of northwest China's Shaanxi Province, Sunday morning, injuring three and burying one.

The accident happened at around 10 am, when the exterior wall of the Huaqiao Shopping Center, which is located on Xi'an's main downtown shopping street, collapsed.

Witnesses said that four people, including a worker and three passers-by, were caught in the rubble.

Rescuers have pulled out three people and sent them to the hospital, and one of them is in serious condition.

According to rescuers, a life detector showed that one person is still alive in the rubble. Efforts are being made to retrieve him.

The shopping mall is slated for demolition and has been closed to customers.