The tearful moment a Ukrainian mother was reunited with her police officer son after 74 days apart was caught on camera by his colleagues, according to a video released this evening by Kharkiv police.

The video, posted on Facebook by the Patrol Police of Kharkiv Region, shows officers gathered around a gated building in the village of Tsyrkuni, Kharkiv, with one officer comforting the mother in Russian by saying "there, there" as she opens the door.

Her son is then seen walking towards her and the pair embrace with a long hug, while the mother can be heard sobbing in his arms. Another woman joins the pair's embrace.

Reuters said it could not independently verify the content of the video.

Police named the officer as patrolman Andriy Sikalenko in the video's caption, and said the "occupiers separated the policeman from his family for 74 long days," for most of which there was no contact with his mother, Halyna Vasylivna.

The police said the video was filmed yesterday, which was Mother's Day in Ukraine.