BELGRADE, Serbia (AP) — Serbian police say they have found 29 migrants with no documents and arrested a suspected people smuggler.

Police said Monday they discovered the migrants in a southern village near the border town of Presevo. They say migrants were packed in two cars with false plates. The man caught with the migrants faces charges of illegal crossing of the border and people smuggling.

The smuggling of migrants through the Balkans has been on the rise since the nations shut their borders in March, closing down the traditional refugee route toward Western Europe.

More than one million people entered Europe last year and nations have been shutting down their borders to curb the influx.