Authorities in Tokyo’s Ota Ward clinched a deal with Japan Airlines Co. and supermarket chain operator Daiei Inc. to help make sustainable aviation fuel (SAF) from waste cooking oil. Ward ...

The Metropolitan Police Department's Ikegami Police Station is seen in Tokyo's Ota Ward. (Mainichi/Maki Kihara) TOKYO -- A man from the Japanese capital's Koto Ward was arrested on suspicion of ...

The runway in the capital’s Ota Ward was cleared of debris and its safety was confirmed on Jan. 7. Following the Jan. 2 accident that killed five people on the Coast Guard plane, the airport ...