The Bay of Plenty regional council said JuleSchiffahrtsgesellschaft pleaded guilty to discharging a harmful substance fromthe 519–teu Liloa (built 2003).

About 1,000 litres of fuel was discharged during refuellingin July last year, the DPA news agency reported.

One of the ship's three tanks did not have enough capacityand the oil spilled on to the deck and into the sea, leaving a 600-metre-longslick.

The