Canada’s Miss World contender has said she was barred from boarding a plane from Hong Kong to the Chinese city hosting this year’s pageant.
Chinese-born Anastasia Lin, 25, says she did not receive an invitation to attend the event, which meant she could not apply for a visa.
But she attempted to travel to Sanya, via Hong Kong, as Canadian tourists are normally granted visas on arrival.
Ms Lin has blamed the apparent ban on her human rights campaigning.
The Miss World tournament is due to happen in the seaside resort of Sanya on 19 December.
When Ms Lin first made her claim that she was not sent an invitation to attend, the BBC attempted to get in touch with Miss World authorities, but received no response.
Ms Lin has spoken to the US Congress about human rights abuses in China