Two men who fled conflict in Sudan have been killed in South Sudan after the vehicle they were travelling in was stopped at gunpoint.
This was reported by the UN refugee agency.
The vehicle was surrounded by armed youths who forced all the people onboard to alight.
The gunmen then abducted and killed two men aged 21 and 62, the UNHCR said.
The motive is unclear, but the UN agency said the attack - which took place on Wednesday in central Warrap state - "puts into question our entire strategy" of transporting Sudanese refugees to a newly opened camp in Wedweil in northern Bahr el Ghazal state.
More than 438,000 people have arrived in South Sudan since conflict broke out in Sudan in April between the army and the paramilitary Rapid Support Forces.