On Wednesday, British police used a stun gun to subdue a man suspected of killing one woman and injuring five more. Police are altering a typically gun-free policy in response to terror attacks in many European cities.
The pope said Sunday that identifying Islam with violence is 'not right and not true,' as there is 'always a little fundamentalist group' in every religion.
The visit on Friday was a private and somber one for the Argentine Pope.
British Prime Minister Theresa May visited Belfast on Monday to address concerns about Britain's vote to exit the European Union, a decision that the majority of those in Northern Ireland opposed.