Hong Kong authorities and activists are set for one last showdown after a court authorized the removal of barricades and tents blocking the Asian financial hub's streets for more than two months.

A High Court restraining order published Tuesday in newspapers requires obstructions be removed from the Admiralty district, site of the protesters' main camp.

The site is one of three that the student-led protesters had occupied since late September to press their demands for greater democracy.

Another protest site in the Mong Kok neighborhood was already shut down by authorities working under a separate court order late last month.

The South China Morning Post newspaper said a third site in the Causeway Bay district is also expected to be dismantled at the same time, citing unidentified police sources.