A Russian court has granted bail to two more of the 30 people who were arrested following a Greenpeace protest against oil drilling in the Arctic.

Greenpeace said that St. Petersburg's Primorsky Court agreed Wednesday to release Faiza Oulahsen of the Netherlands and Alexandra Harris of Britain on bail of 2 million rubles ($61,500) each.

Courts had already agreed this week to free 12 people pending trial, but refused to release an Australian activist and ordered him held until February.

The 30 people aboard a Greenpeace ship were detained in September and have been in custody ever since. It is unclear whether the foreign activists would be allowed to leave the country.

They were initially charged with piracy, but investigators later said they would be tried on charges of hooliganism.