Ukraine accuses mercenary groups of using banned weapons

Read MoreUkraine is accusing the Wagner Group, a Russian mercenary organization, of using banned weapons including white phosphorous. Ukrainian and Russian forces are still engaged in a brutal battle for control of the city of Bakhmut. Charlie D’Agata reports.Ukraine is accusing the Wagner Group, a Russian mercenary organization, of using banned weapons including white phosphorous. Ukrainian and Russian forces are still engaged in a brutal battle for control of the city of Bakhmut. Charlie D’Agata reports.