The European border agency, Frontex, said the number of irregular entries into the European Union increased by 82% between January and May to 86,420 compared to the same period last year.
In a release of preliminary data, Frontex said that in May the number of entries increased by 75% year on year to 23,500.
The agency clarified that Ukrainian refugees entering the EU through border crossings were not taken into account in these calculations.
According to Frontex, 5.5 million Ukrainian citizens have entered the EU from Ukraine and Moldova since the start of the Russian invasion in February.
More than 40,000 irregular entries, three times more than in the same period last year, were recorded via the Balkan route which was used mainly by Syrian and Afghan migrants.
The central Mediterranean route was used by more than 16,000 migrants, mainly of Egyptian, Bangladeshi and Tunisian origin.
The number of irregular crossings in the Eastern Mediterranean rose to more than 13,000, up 116% from last year.
In Cyprus, they increased by 213% and represented two out of three illegal crossings on this route.
Most of the migrants were from Nigeria, Syria and Congo.
On the EU’s eastern border, the number of illegal crossings has more than quadrupled since the start of the year to 2,155.
The main nationalities present on this route were Ukrainian, Iraqi and Belarusian nationals.
Crossings on both sides of the Channel have increased by 122% compared to 2021, according to Frontex.