Japanese shipping firm Mitsui O.S.K. Lines has disclosed the possible causes of an accident that led to a massive oil leak off Mauritius.

The company announced on Friday its findings on the July 25 accident involving the bulk carrier Wakashio, which it had chartered. The oil leak has caused serious environmental pollution in the Indian Ocean nation.

Typhoon Haishen has passed by the southwestern island of Kyushu, but authorities in Japan are calling on people to remain on alert.

The storm brought strong winds and heavy rain to Japan's Kyushu and Chugoku regions. It also caused heavy rain in many parts of the country. Authorities are warning of landslides, swollen rivers and flooding in low-lying areas.

The semi-truck or big rig is an effective way of transporting freight across the country. It doesn’t matter what size or type of freight, the semi-truck can handle it.

Unfortunately, it is a mechanical vehicle and things can go wrong. When they do it can be costly and inconvenient to repair, especially if the truck is fully-loaded.

Japanese researchers say recent volcanic activity on Nishinoshima has caused the remote island in the Pacific to increase in size.

The activity has picked up at Nishinoshima, one of the Ogasawara Islands, since mid-June. The uninhabited island is far south of Tokyo.

Japan's Environment Ministry says waste produced by decontamination work following the 2011 Fukushima Daiichi nuclear plant accident could leak at 12 locations in case of torrential rain.

The ministry checked all the sites where the waste is kept after 91 bags were swept into rivers in Fukushima and Tochigi prefectures last year due to downpours caused by Typhoon Hagibis.