Facebook will also continue to apply labels to additional Russian state media, head of security policy Nathaniel Gleicher announced via Twitter.

"We are closely monitoring the situation in Ukraine and will keep sharing steps we're taking to protect people on our platform," he said.

Facebook earlier launched a new feature in Ukraine, allowing users to lock their profiles for extra security and privacy.

Russia has partially restricted Facebook in response to its blocking of some Russian state media outlets.

Russia's communications regulator Roskomnadzor accused Facebook owner Meta of violating "fundamental human rights and freedoms as well as the rights and freedoms of Russian citizens" by blocking pages, including those of state news agency RIA Novosti.

Twitter has also paused advertising in Russia and Ukraine to "ensure critical public safety information is elevated and [that] ads don't detract from it".

Meanwhile Ukrainian vice Prime Minister Mykhailo Fedorov has called on Apple to cut Russia off from the company's products and services.

The move would "motivate youth and active population of Russia to proactively stop the disgraceful military aggression," Fedorov said in a letter to Apple's chief executive Tim Cook.

Australian Associated Press