American-backed military forces killed as many as 100 Russian mercenaries during an attack on a US-held base in Syria last week, according to a report on Tuesday.
Scores of troops, mostly a mix of Russians and Ukrainians fighting on the side of Syrian strongman Bashar al-Assad, stormed the base held by US and Kurdish forces in the Deir Ezzor region, Bloomberg News reported.
Two Russians told the website that 200 of their countrymen died in the failed assault, but a US official said the death toll was about 100 with another 200 to 300 wounded.
No US casualties were reported.