Italy's new leaders tell 500,000 immigrants: Pack Your Bags.

The right-wing Lega party, which formed a coalition government with Five-Star Movement (M5S) last week, is the driving force behind anti-immigration rhetoric and it is looking to fulfil a pledge to deport as many as 500,000 illegal migrants.

Lega leader Matteo Salvini — who is now Italy's deputy prime minister and interior minister — reiterated the government's aim to deport illegal migrants on a visit to Sicily last weekend.

On Saturday, speaking at a rally in northern Italy, Salvini had told illegal migrants "get ready to pack your bags."

On Sunday, Salvini said the only way to avoid more deaths was to stop people getting on boats in the first place. He caused a diplomatic row by accusing Tunisia of sending "convicts" over to Italy in migrant boats.

Michael Flynn, executive director of the GDP, told CNBC that the Italian government's proposals to deport around 500,000 people were "ridiculous," costly and impracticable.