Xinhua photos of the day

A helicopter is seen during a fire-fighting and anti-pollution exercise off the northern Adriatic city of Pula, Croatia, Nov. 22, 2019. Firemen from Croatia, Slovenia and Italy participated in the exercise, which was conducted after a two-year joint training under the project North Adriatic Maritime Incident Response Group (NAMIRG). (Dusko Marusic/Pixsell via Xinhua)