NBC News has not confirmed that the U.S. verified that any such bounty payments were made.
In an interview with NBC News on Monday, Dmitry Peskov, spokesman for Russian President Vladimir Putin and a senior figure inside the Kremlin, denied Russian intelligence officers had offered these bounties.
"You know, maybe I can say it's a little bit rude but this is 100 percent bulls---," Peskov said when asked about the U.S. intelligence. "It's an undiplomatic thing, but it's bulls---."
On whether any officials in the U.S. had raised the subject with their Russian counterparts, Peskov said, "As far as I'm concerned none of the American representatives have ever raised this question" with their Russian counterparts through government or diplomatic channels.