China appears to have banned the bible from being sold online or in large book stores, as Beijing and the Vatican negotiate a historic agreement.

Searches for bibles on major e-commerce platforms JD.com and Taobao brought up no results, while staff at one of Beijing's biggest book stores said they no longer sell the book.

The removal of the book comes amid tensions between China and Rome over a landmark deal that some observers believe is close to being signed.

The agreement, which would give the Vatican more control over the appointment of bishops in China, has sparked concern among some Chinese Catholics.

They believe recognising Beijing's role in the Catholic church would represent a betrayal of their faith.

China's ruling Communist Party is officially atheist, but the Chinese government recognises Buddhism, Taoism, Islam, Protestantism and Catholicism.

Chinese leaders have called for increased efforts to "Sinocise" religion, in comments which are seen as being part of a wider clampdown on Western ideas.