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 ...

At least 100 flights were canceled on Jan. 3 following the fatal collision between a Japan Airlines Co. passenger jet and a Japan Coast Guard aircraft at Haneda Airport in Tokyo’s Ota Ward.