The government of Bosnia's Serb entity, the Republika Srpska, recently barred officials from speaking to journalists from the country's public television channel, BHT1.
In a joint statement, the Organization for Security and Cooperation in Europe (OSCE) and the high international representative in Bosnia, Christian Schwarz-Schilling, called on the OSCE's top official on media freedoms to assess the situation.
Bosnian Serbs have accused BHT1 of political bias.
(AFP)