A global agreement designed to protect the world's oceans and reverse damage to marine life is set to become international law.
The High Seas Treaty received its 60th ratification by Morocco on Friday, meaning that it will now take effect from January.
The deal, which has been two decades in the making, will pave the way for international waters to be placed into marine protected areas.
Environmentalists heralded the milestone as a "monumental achievement" and evidence that countries can work together for environmental protection.