The Latest: North Macedonia finds migrants hiding in truck

In this Sunday, May 19, 2019 photo, a Guardia di Finanza patrol boat approaches the German aid group ship Sea-Watch 3 in the waters off the Sicilian island of Lampedusa, southern Italy. Italy's hard-line Interior Minister Matteo Salvini threatened possible legal action Monday, May 20, 2019 after 47 migrants rescued at sea by the humanitarian aid ship landed on the southern Italian island of Lampedusa on Sunday evening with the cooperation of the Coast Guard and financial police despite his explicit ban against them. (Elio Desiderio/ANSA via AP)

Italian Deputy Premier and Interior Minister, Matteo Salvini, attends an election campaign rally in Sassuolo, Italy, Sunday, May 19, 2019. Salvini, the head of Italy's right-wing League party, has positioned himself at the forefront of a growing movement of nationalist leaders seeking to free the European Union's 28 nations from what he called Brussels' "illegal occupation". (Serena Campanini/ANSA via AP)

The Latest on migration to Europe (all times local):

4:30 p.m.

Police in North Macedonia say they have discovered eight migrants crammed into a hidden compartment in the roof of a truck, during a routine search at the border crossing with Serbia.

The Iraqi men were found before midnight Sunday in a truck with Bulgarian license plates.

Police said Monday the driver was detained and the migrants were transferred to a shelter in the southern town of Gevgelija and would be deported to Greece. Authorities say the eight illegally entered North Macedonia from Greece and were aiming to head through Serbia on to other European countries.

Although what became known as the Balkan route from Greece to other European countries has been shut since 2015, many migrants still attempt to cross through the Balkans using smugglers.

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9:35 a.m.

Italy's hard-line interior minister is reacting with anger after migrants rescued by a humanitarian ship landed on Italy's southern island of Lampedusa despite his explicit ban.

Matteo Salvini on Monday threatened charges against anyone who acted illegally to bring the 47 migrants to land. He said on Facebook if "there was a ploy to disembark the migrants, I will take action because that is aiding and abetting human trafficking."

The German aid group Sea-Watch said the remaining migrants on board their rescue ship were transferred to Lampedusa on Sunday evening with the cooperation of the Coast Guard and financial police. They were among 65 migrants rescued off the coast of Libya last week.

Sea-Watch said its vessel was too big to enter Lampedusa and had been ordered to another port on "probationary confiscation."