Acclaimed US filmmaker Brent Renaud killed in Ukraine

Mr Renaud and Mr Putzel won a 2013 Alfred I duPont-Columbia University journalism award for Arming The Mexican Cartels, a documentary about how guns trafficked from the US fuelled drug gang violence

Brent Renaud pictured in 2015 (Charles Sykes/Invision/AP)

An acclaimed US filmmaker was killed in Ukraine on Sunday after Russian forces opened fire on his vehicle.

Brent Renaud, 50, from Little Rock, Arkansas, was gathering material for a report about refugees when his vehicle was hit at a checkpoint in Irpin, just outside the capital Kyiv.