TOPSHOT - Migrants and refugees enter the trailer of a truck on December 17, 2015 on the site of the Eurotunnel in Calais.
A growing number of migrants seeking to reach Britain are trying to leave from the Belgian port of Zeebrugge, prosecutors and police said on December 16, with people finding it increasingly hard to make the dangerous crossing from France's Calais.
 / AFP / PHILIPPE HUGUEN        (Photo credit should read PHILIPPE HUGUEN/AFP/Getty Images)