Xi has overseen a wide-ranging campaign against official corruption since coming to power just over a decade ago, with critics saying it also serves as a way to purge political rivals.

Recent efforts appear to have focused on the People's Liberation Army (PLA), with top official Miao Hua last month joining a host of high-ranking figures to be removed from their positions in just over a year.

Speaking to troops from the PLA's Information Support Force on Wednesday, Xi said the military should "rigorously enforce discipline", according to state broadcaster CCTV.

The military should "combat corruption to ensure the absolute loyalty, purity, and reliability of the force", Xi told the soldiers.

The creation of the Information Support Force was announced in April, with analysts seeing it as a reform of the PLA's running of its cyber, information, logistics and space operations.

Xi told the troops on Wednesday that it had to "focus on capabilities to fight and win wars".

His message came as simmering flashpoints in the wider region flared up this week, particularly in regards to Taiwan.

Beijing views self-ruled Taiwan as part of its territory and has refused to rule out the use of force to bring the island under its control one day.

Taiwan President Lai Ching-te has been on a Pacific tour this week, and his inclusion of Hawaii and the American territory of Guam has angered China.

Beijing on Thursday warned the United States it should "clearly recognise the serious danger that separatist acts of Taiwan independence pose to peace and security across the Taiwan Strait", after Republican US House Speaker Mike Johnson held a call with Lai.

And on Wednesday the Philippines said the China Coast Guard fired water cannon and "sideswiped" a government vessel during a maritime patrol in the disputed South China Sea after Beijing said it had "exercised control" over the ship.