Russia’s ambassador to the United Nations was rushed to a Manhattan hospital Monday morning after suffering heart problems, sources told The Post.

Vitaly Churkin was at the Russian embassy on East 67th Street when he became sick with a “cardiac condition” around 9:30 a.m., sources said.

He was unconscious and needed CPR when he was rushed to New York Presbyterian Hospital. Churkin is in serious condition.

The 64-year-old diplomat has served as Russia’s permanent representative to the UN since 2006.

Additional reporting by Gina Daidone