Protesters demand Iran free jailed Belgian aid worker
Hundreds of demonstrators on Sunday urged Belgium to push harder to secure the release of aid worker Olivier Vandecasteele, held by Iran in a case decried as "hostage diplomacy".The crowd, gathered in freezing temperatures in central Brussels, chanted "Free Olivier" and sang Happy Birthday to mark Vandecasteele's 42nd birthday this week."The aim is to show the government that we cannot leave an innocent person there," his sister Nathalie told AFP.