Two Ugandan journalists have been detained in South Sudan by officials from the country's internal security services.
The Uganda Journalists Union (UJU) said Reuters correspondent Justin Dralaze and freelancer Hilary Ayesiga were arrested near the airport in the capital, Juba, and taken to a military establishment.
The South Sudan authorities claim the two journalists had no press permits or the formal accreditation that is issued by Juba authorities.
UJU president Lucy Anyango Ekadu said: "We condemn in the strongest terms possible the arrest and detention of the journalists in a military establishment, moreover incommunicado.
"We call on the Juba authorities to immediately and unconditionally release the two journalists."
The arrests occur at a time of heightened tensions in the world's youngest nation following last week's dismissal of the entire cabinet by the president, Salva Kiir.
Sources: Africa.com/BBC
