Uganda helped to deliver European arms and ammunition to South Sudan at the height of its civil war, circumventing a European Union arms embargo on the East African country, a weapons monitoring group said.

The Conflict Armament Research (CAR) said South Sudan arranged for the Ugandan government to provide end-user assurances for purchases of weapons and ammunition from Bulgaria, Romania and Slovakia.

“We have a paper trail from point of manufacture, through export to Uganda, through diversion to South Sudan, and to the recovery of the weapons on the battlefield,” said James Bevan, head of CAR.

The weaponry, delivered to Uganda in 2014 and 2015, was then transferred to neighboring South Sudan, CAR said in a report based on four years of research.