Paris police arrest 20 as demonstrators defy ban on Iran opposition rally

PARIS, June 20 (Reuters) - Protestors against political executions in Iran gathered in Paris on Saturday in defiance of a ban on the rally, at which police arrested 20 people, according to organisers.Hundreds of demonstrators gathered at Place Vauban near the Les Invalides monument in central Paris, but were dispersed by police, Shahin Gobadi from the Paris-based NCRI said.Paris police could not immediately be reached for comment.