A man holds up a protest sign during the protest rally to support Edward Snowden in Hong Kong on June 15, 2013.

A few hundred rights advocates and political activists marched through Hong Kong on Saturday to demand protection for Edward Snowden, who leaked revelations of U.S. electronic surveillance and is now believed to be holed up in the former British colony.

Marchers gathered outside the U.S. consulate shouting slogans denouncing alleged spying operations aimed at China and Hong Kong, but the numbers were modest compared to rallies over other rights and political issues.