TAIPEI, Feb 24 (Reuters) – Taiwan’s air force scrambled again on Thursday to warn away nine Chinese aircraft that entered its air defence zone, Taiwan’s defence ministry said, on the same day that Russia invaded Ukraine, a crisis being watched closely in Taipei.

Taiwan, which China claims as its own territory, has complained of regular such missions by the Chinese air force over the last two years, though the aircraft do not get close to Taiwan itself.

The ministry said the latest mission involved eight Chinese J-16 fighters and one Y-8 reconnaissance aircraft, which flew over an area to the northeast of the Taiwan-controlled Pratas Islands at the top end of the South China Sea.

Taiwan has been warily watching the Ukraine crisis, nervous that China may try to take advantage to move on the island.

While Taipei has not reported any unusual movements by Chinese forces, the government has increased its alert level. read more

Speaking in Beijing earlier on Thursday when asked about the new U.S. Indo-Pacific strategy, Chinese Defence Ministry spokesman Tan Kefei reiterated that Taiwan was a “core issue” of China’s and it would tolerate no foreign interference.

“We urge the U.S. side to recognise the high sensitivity of the Taiwan issue, stop interfering in China’s internal affairs and stop playing with fire on the Taiwan issue,” Tan said.

In the 12-page Indo-Pacific strategy overview issued earlier this month, the Biden administration vowed to commit more diplomatic and security resources to the region. read more

On Taiwan, Washington would work with partners inside and outside the region to maintain peace and stability in the strait dividing the island from China, it said.