Uganda has summoned Rwanda’s ambassador in Kampala to explain why there have been disruptions at the main border crossings between the two countries.
Rwandan authorities are said to have blocked most cargo trucks from Uganda and media reports say Rwandans have also been stopped from crossing into Uganda.
The Rwandan government denies this and says only heavy goods vehicles have been blocked at one border post because of construction works.
A build-up of vehicles has been reported at three key border crossings between Uganda and Rwanda.
According to Ugandan officials, most of the vehicle traffic from Uganda has been stopped but people are allowed to enter Rwanda.
Rwanda is Uganda’s fifth biggest export destination. And most imports into the country pass through Uganda.
There have been reports of a strained relationship between the two countries. Last year, a former head of police was arrested over allegations of collusion with Rwanda.
The Rwandan government has protested the mistreatment of its citizens in Uganda, some of whom were arrested over accusations of espionage.
A Ugandan government spokesman has denied that Rwandans are being harassed.
“There’s also nobody from Rwanda being held by the Ugandan authorities for any reason. We would like to send a clear message to Rwanda that there’s no one Uganda is harassing from Rwanda or is in custody,” Uganda government Spokesman, Ofwono Opondo said.