Ukraine says Russia has struck a TV tower in Kyiv

A fireman runs after Russian airstrike hit Kyiv’s main television tower in Kyiv on March 1, 2022.

Photographs show casualties and destroyed infrastructure in Ukraine.

The TV tower in Kyiv has been struck by Russian forces.

According to a translation of the agency's official account, backup broadcasts may return shortly, but television channels will temporarily stop working.

The senior U.S. Defense official made a reference to the attack later in the day.

We have seen open press images of at least one strike on a government building. The person who spoke on condition of anonimity told reporters that that was the only one they were aware of.

Satellite imagery shows a long convoy of Russian military forces headed toward Kyiv, raising fears that the capital city could soon face a full-scale assault. Russia invaded its neighbor last week.

EDITORS NOTE: Graphic content: A fireman extinguishes bodies of passerbys killed after an airstrike that hit Kyiv’s main television tower in Kyiv on March 1, 2022.

The U.S. official said that there are indications that the Russian move on Kyiv has stopped and that some Russian units have surrendered.

The city of Kharkiv lies to the east of the city near the Russian border. People fleeing from Russian bombs and shelling have taken refuge in the city's metro stations.

CNBC's Amanda Macias contributed to the report.

This is happening. You can check back for updates.