"Thank God they're alive": Mother of American missing in Ukraine says new video appears to be authentic

The mother of one of two U.S. military veterans reportedly being held by Russian or pro-Russian forces told CBS News that Russian media images that were released appear to be of her son. 

"Unmistakably under duress, but thank God they're alive," Bunny Drueke, Alex Drueke's mother, told CBS News foreign correspondent Chris Livesay.

Drueke and Andy Huynh, who are reportedly in Russian custody, were both former military from Alabama, and were fighting in a squadron of foreign fighters alongside the Ukrainian army.