The EU said Saturday that its top official Ursula von der Leyen would visit the Italian island of Lampedusa, as Rome called on Brussels for help after a surge in migrant arrivals.
The spike in arrivals has rekindled the debate over how Europe shares responsibility for asylum seekers.
Lampedusa, Italy's southernmost island, has long been a landing point for migrant boats from North Africa. But this week its migration centre, built to house fewer than 400 people, was overwhelmed.
Between Monday and Wednesday, around 8,500 people - more than the entire local population - arrived in 199 boats, according to the UN migration agency.
Images of people sleeping in the open air, scaling the perimeter fence and wandering around the town sparked anger among members of Italy's hard-right government.
"The migratory pressure that Italy has been experiencing since the beginning of the year is unsustainable," she said in a video message broadcast by her office.
The cause of the surge, she said, was the "difficult international situation" in Africa.
She had urged von der Leyen to visit Lampedusa and asked European Council President Charles Michel to put the matter on the agenda for October's EU summit.
Von der Leyen - with Meloni's strong backing - struck an agreement with Tunisia in July aimed at curbing the flow of irregular migration from the North African country.
Tunisia is a main embarcation point for migrants making the perilous sea-crossing to Europe each year.
More than 127,000 migrants have arrived on Italy's shores so far this year, up from more than 66,000 in the same period last year.
Over 2,000 people have died this year crossing between North Africa and Italy and Malta, according to the UN migration agency.
Mass migration is a key political issue in several EU capitals ahead of European Parliament elections next June.
In France, members of the far right said the government should not allow any migrants from Lampedusa across the border - to which President Emmanuel Macron responded by calling for European solidarity.
Germany earlier this week confirmed it had stopped accepting migrants living in Italy under a European solidarity plan aimed at easing pressure on EU border nations.
The EU is pushing to overhaul its rules on how to handle the thousands of migrants heading to the continent.
Southern countries that face large numbers of arrivals such as Italy, Greece and Spain have long pressed for other countries to take more of those who come.
(FRANCE 24 with AFP)