An annual oil spill response joint exercise, this year code-named Oilex 2013, was held on October 17 off Ha Mei Wan, Lamma Island, to test responses in combating oil pollution in Hong Kong waters. Under the Maritime Oil Spill Response Plan, the Marine Department coordinated the exercise and other government departments including the Civil Aid Service, the Auxiliary Medical Service, the Food and Environmental Hygiene Department, the Government Flying Service (GFS) and the Hong Kong Police Force participated. Several oil companies and Hong Kong Response Limited also took part in the exercise.