Montenegrin Transport Minister Jusuf Kalamperovic said Yugoslavia's federal government, which oversees the republics of Serbia and Montenegro, is trying to force Montenegro to back the war effort by preventing critical supplies from reaching it.

CNN: Serb officials say Yugoslavia 'ready to cut a deal'

The arrest of Mr Markovic suggests that the Serbian government is gaining power at the expense of the Yugoslav administration responsible both for Serbia and its reluctant federal partner, Montenegro.

ECONOMIST: Yugoslavia