Bangladesh oil spill threatens wildlife

Efforts are under way to clean up an oil slick threatening part of the world's largest mangrove forest in Bangladesh.

Oil leaked into waterways in the Sundarbans area after a collision involving a tanker three days ago.

Conservation chief Pradeep Vyas said "precautions" were being taken in West Bengal's coastal region.

Watch Martin's report to find out more.

Watch more Newsround videos