ATHENS, Dec 4 - Two dozen aid workers went on trial in Greece on Thursday on charges including migrant smuggling, in a case that rights groups have dismissed as a baseless attempt to outlaw aid for refugees heading to Europe. 

The trial on the island of Lesbos comes as EU countries, including Greece - which saw more than one million people reaching its shores during Europe's refugee crisis in 2015-2016 - are tightening rules on migration as right-wing parties gain ground across the bloc.