The Serb-led entity in Bosnia, Republika Srpska, has halted all projects being implemented with Chinese companies owing to concerns about the possible spread of the coronavirus.
Milorad Dodik, Serbian member of the Bosnian Presidency, announced the move on Sunday to Serbian television Pink, noting the potential economic consequences of the continued spread of the virus.
Almost a year since Bosnia and Serbia agreed to build a highway linking their capitals, Bosnia's two entities remain in a deadlock over the route.
Currently the trip between Sarajevo and Belgrade takes some five hours by car.
The fast road is expected to cut travel time drastically and provide a link between the two countries, both physically and symbolically.