The top United States general for the Middle East said today that the intelligence suggesting that Russia may have paid Taliban militants to kill American troops in Afghanistan was concerning.
But he is not convinced that any bounties resulted in US military deaths.
General Frank McKenzie, the head of US Central Command, said that the US did not increase force protection measures in Afghanistan as a result of the information, although he asked his intelligence staff to dig into the matter more.
"I found it very worrisome. I didn't find that there was a causative link there," said McKenzie, who is the first Pentagon official to speak publicly at length about the issue.
He warned, however, that Russia has long been a threat in Afghanistan, where there have been many reports that it has backed Taliban fighters over the years with resources and weapons.