BRUSSELS -- The United Nations refugee agency expressed concern Tuesday that a new Italian law authorizing massive fines against the owners of private rescue ships could endanger the lives of migrants attempting to cross the Mediterranean Sea.
A so-called "security decree" drafted by Italy's right-wing interior minister and given final parliamentary approval Monday raised the maximum fine for entering Italian waters without permission to 1 million euros ($1.1 million) from a previous 50,000 euros ($56,000).
The law also allows for the arrest of captains who ignore orders to stay out of Italian ports and the immediate seizure of their boats by Italian naval authorities.
The U.N. agency said non-governmental organizations operating rescue ships play "an invaluable role" in saving lives and "the commitment and humanity that motivates their activities should not be criminalized or stigmatized."
Italy's law "could deter or impede sea rescue activities by private vessels at a time when European states have largely withdrawn from rescue efforts" in the Mediterranean, UNHCR said.
After the Italian Senate voted 160-57 with 21 abstentions in favor of his decree, Interior Minister Matteo Salvini called the move "a step forward toward a more secure Italy" and thanked the Italian people and "the blessed Virgin Mary," according to Italian news agency ANSA.
The European Union's executive commission said it was analyzing the legislation to see if it is compatible with EU laws.
Since taking office last year in a populist coalition government, Salvini has made keeping migrants from reaching Italy and pressuring other European countries to take responsibility for new arrivals a top priority.
He banned ships on humanitarian rescue missions from bringing migrants into the country's ports, arguing that their presence in the Mediterranean encouraged smugglers to launch unseaworthy boats from northern Africa.
The captains of at least two aid group ships have defied the ban and taken migrants to Italy's southernmost Lampedusa island - one on June 29 and the other on July 6.
Greece and Spain were the entry points for 82% of Europe's new arrivals via the Mediterranean since Jan. 1, while the number of migrants entering Italy dropped significantly - from 18,872 during the first seven months of 2018 to 3,950 this year, the organization reported Tuesday.
The number of known migrant deaths at sea also declined, from 1,517 between during Jan. 1-Aug. 4 last year to 840 this year, IOM said. This year's estimate did not include 20 migrants who are believed to have died over the weekend, the agency said.