China warns nationals of 'worsening' situation in Ukraine

China is emphasizing a "worsening" situation in Ukraine while stopping short of telling its nationals to leave the country.

In a call with Secretary of State Antony Blinken, Chinese foreign minister Wang Yi on Monday reiterated concerns about the situation in Ukraine, Reuters reported.

"The situation in Ukraine is worsening," Wang said on the call, the Chinese foreign ministry said in a statement. "China once again calls on all parties to exercise restraint."

The Chinese Embassy in Ukraine told nationals not to go to areas that are unstable but did not tell them to leave like many other countries have told their citizens, according to Reuters.

"The Chinese embassy in Ukraine has issued a reminder to Chinese citizens and enterprises to strengthen security precautions," Wang Wenbin, a foreign ministry spokesman, said.

Russia has said its aggression has sprouted from security concerns in the region, with Wang telling Blinken security concerns of any country should be recognized.

In a statement, State Department spokesman Ned Price said Blinken "underscored the need to preserve Ukraine's sovereignty and territorial integrity" during his call with Wang.

Tensions have reached a boiling point as Russia has recognized Moscow-backed separatist regions in eastern Ukraine as independent and said troops could enter. Ukraine said it will not be ceding any territory.