In its push to hold captured territory in Ukraine , Russia has turned to countries like North Korea for added manpower. Now, it appears additional support is also coming from Cuban mercenaries.

Videos obtained by CBS News appear to show Cuban nationals captured by Ukraine on the front lines with Russia. Ukrainian officials estimate as many as 20,000 Cubans have been recruited by Russia to fight as mercenaries.

"Cubans are looking for any way to get out," Florida GOP Rep. Mario Diaz Balart said. "They're recruiting Cubans from around the island with these false promises."

Ukrainian officials, who shared copies of dozens of passports belonging to Cubans they believe to be mercenaries, say Cubans are being offered one-year contracts with the promise of a $2,000 monthly salary.

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