(Tunisians fleeing camp in the Italian mainland)
Italy has transferred almost all the migrants to detention centres in Sicily and on the Italian mainland. Local news broadcasts showed scenes of hundreds of people jumping fences or simply walking through the centres' gates and sprinting away, almost unopposed by police and security.
The subject has caused tension within Berlusconi's conservative coalition, on Tuesday prompting a threat to bring down the government by a member of the Northern League, an anti-immigrant party of which Maroni is one of its most prominent members.
"We can't be patient for eternity. Our electorate is furious," said Davide Boni, president of Milan's wealthy Lombardy region and a League member. "If the premier doesn't bring home some good results with Tunisia we will have to open a crisis," he told left-leaning weekly L'Espresso. "The League is ready to abandon the government.''