NANJING -- The curator of a municipal museum in east China's Jiangsu Province has been suspended from her post for allowing a developer's promotional event to be held at a protected cultural site.

On Sunday afternoon, a ceremony was held in Dacheng Hall of Chaotian Palace, which is managed by the Nanjing Municipal Museum, to promote a real estate project. Movie star Jackie Chan was among those who attended the event at the state-protected relic site.

The event sparked online outrage, prompting an investigation by authorities in Nanjing City, the provincial capital.

The city's bureau of culture, radio, film, television, press and publication said Peng Jian, the curator of the museum, failed to file an application for the event, as required by the cultural heritage protection regulation, and that commercial events may not be held in museums and cultural venues.

The Chaotian Palace is a well-preserved complex of building constructed during the Ming and Qing dynasties.