A Kenya Wildlife Services (KWS) ranger unpacks seized elephant tusks in 2010. The question of whether to extend a trade ban on African ivory is set for a vote at the next meeting of UN wildlife trade regulator CITES, the organisation said Friday.

The question of whether to extend a trade ban on African ivory is set for a vote at the next meeting of UN wildlife trade regulator CITES, the organisation said Friday.

It is "probably the most contentious issue" at the Bangkok conference in March, said John Scanlon, the head of CITES, the Convention on International Trade in Endangered Species of and Flora.

Citing the "highest level of illegal killing and trade in 20 years", Scanlon said the meeting offered a chance to halt the "spike in poaching in ivory" since there was "consensus around taking measures to stop it".

CITES members had presented 67 proposals for and against a total trade ban, he told reporters in Geneva.

One was a call by four nations—, Kenya, Mali and Togo—for a blanket ban on ivory from all 38 countries in Africa where elephants live until 2017.

At present only four countries were affected—Namibia, Botswana, South Africa and Zimbabwe—CITES said.

Another proposal, by Tanzania, would allow that country to sell 101 tonnes of stockpiled ivory and also trade in elephant hunting trophies.

Under CITES rules, proposals are adopted by a two-thirds majority, Scanlon said, adding that at the last global conference in Doha in 2010, 25 out of 42 proposals got the green light.

In addition to the bid to beef up restrictions on the , other members sought tougher measures to protect the white rhino (Kenya), the white-tip shark (Colombia, US), and manta ray (Ecuador).

The United States, meanwhile, pushed for a total halt in the trade of polar bear parts and products, claiming that had shrunk the animal's and it therefore qualified as an endangered species.

The 176 member states will also get a chance to vote on proposals to boost the protection of hammerhead sharks and the porbeagle fish—both narrowly defeated two years ago.