Police in the German port city of Cuxhaven have stopped dozens of migrants from stowing away on freighters heading to Britain in recent months.
The Cuxhavener Nachrichten newspaper reported that German border police have been monitoring the port since last autumn.
It quoted police spokesman Holger Jureczko saying the young men, mostly from Albania and Kosovo, had repeatedly tried to climb over security fences to reach trucks being loaded on to freighters.
Three Albanians who had reached England illegally were sent back to Cuxhaven on Monday.
Mr Jureczko said police and port operators had increased security measures, and authorities believe they are now apprehending the majority of illegal migrants.