25 G3M bombers of Japanese Mihoro Kokutai (based in Tainan, Taiwan) with A6M Zero fighters in escort attacked Lanzhou, Gansu Province, China. Gao Youxin, flying an I-16III fighter temporarily based in Chung Chuan Chun Airfield to the north of the city, dispersed several bombers making an attack run on the airfield, allowing five I-16III fighters to take off. Gao went on to shoot down one G3M bomber (Lieutenant Shintaro Hashimoto) and damaged another. Most of the G3M bombers, however, bombed the city uncontested.
