BEIJING, March 30 (Xinhua) -- China firmly supports Cuba in maintaining its national sovereignty and security, and opposing external interference, Chinese foreign ministry spokesperson Mao Ning said on Monday.

Photo taken on April 4, 2018 shows the entrance to the Chinese Foreign Ministry in Beijing, capital of China. (File photo: Xinhua)

Mao made the remarks at a regular press briefing after the U.S. side said that Cuba will fail soon after the U.S. military operation against Iran.

Mao stressed that China always advocates respecting the sovereignty and territorial integrity of all countries and opposes infringing upon the sovereignty of other countries or interfering in their internal affairs under any pretext.