Chinese navy sailors visit the frigate RSS Stalwart (Hull 72) of Singapore during the ship open day activities of the ASEAN-China Joint Maritime Exercise 2018 on October 24. (Photos: eng.chinamil.com.cn)

Chinese navy sailors visit the frigate RSS Stalwart (Hull 72) of Singapore during the ship open day activities of the ASEAN-China Joint Maritime Exercise 2018 on October 24.

The ASEAN-China Joint Maritime Exercise 2018 is held in Zhanjiang from Oct. 22 to 28.

Thai navy sailors visit Chinese guided-missile destroyer Guangzhou (Hull 168) during the ship open day activities of the ASEAN-China Joint Maritime Exercise 2018 on October 24.

Singaporean navy sailors pose for a group photo while visiting the Chinese guided-missile frigate Huangshan (Hull 570) during the ship open day activities of the ASEAN-China Maritime Exercise 2018 on October 24.