France and Italy in migrant row
17 April 2011 Last updated at 22:06 BST
Authorities in France have blocked trains from Italy in an attempt to stop north African migrants from entering the country.
Trains carrying migrants and political activists have been stopped at the border - prompting Italy to launch an official complaint with its neighbour.
Italy has angered France by giving out temporary residence permits to thousands of Tunisian migrants. Duncan Kennedy reports from Rome.