American Olympic gold medallist Ryan Lochte has joined the Water for People campaign, which aims to bring cleaner water to developing countries.
The 28-year-old swimmer and his compatriot Conor Dwyer have filmed a public service announcement backing countries, including India, to receive better access to drinking water as well as sanitation facilities.
The organisation, which is a non-profit group based in Denver, Colorado, also focuses on hygiene education programs.
Water for People is currently working in countries including, Uganda, Peru, Ecuador, Rwanda and Honduras.