Leaders attended the Blue Economy and Finance Forum in Monaco on Sunday, held in advance of the UN Ocean Conference next week.

The meeting, on World Oceans Day, is being held at the Grimaldi Forum, named after Monaco's royal family.

Prince Albert II of Monaco greeted the Prince of Wales, who is to give a key speech at the forum, as well as Brazil’s President Luiz Inácio Lula da Silva, French President Emmanuel Macron and Costa Rican President Rodrigo Chaves Robles as they arrived.