A Japanese-controlled bulk carrier that grounded on the paradise island of Mauritius last week has started to leak oil after heavy weather conditions caused the hull to rupture.

The owner of the 203,000-dwt Wakashio (built 2007) confirmed fuel oil had started to escape from the ship’s fuel tanks just over a week after running aground.

Japan's Nagashiki Shipping did not offer any details on how much oil had leaked from the vessel but added that measures are in place to contain the spill.