Is Khartoum Sending Weapons to Rebels in South Sudan?

Foreign Policy published on 2 June 2015 an article titled "Is Khartoum Sending Weapons to Rebels in South Sudan?" by Siobhan O'Grady.  The article says there is evidence, although it is not definitive, that Khartoum has been supplying weapons to rebels in South Sudan, a charge denied by the government of Sudan.

The article in Foreign Policy draws on a much more detailed report published in June 2015 by London-based Conflict Armament Research titled "Weapons and Ammunition Air Dropped to SPLA-IO Forces in South Sudan."