A man in his 50s has been charged after a pro-Palestinian protest at Trinity College Dublin during a surprise visit by former US President Joe Biden, Irish police said. Police said three men were arrested following Tuesday’s incident. The charged man is due to appear in court, while two other men were released without charge. Authorities did not specify the charges. Biden, accompanied by his wife Jill Biden, attended a ceremony where their son Hunter Biden received the Gold Medal for Outstanding Contribution to Public Discourse from the university’s College Historical Society. As the Biden family left the venue, protesters moved towards them and threw objects, including milk, local media reported. Using a loudspeaker, protesters criticized Biden’s visit and his administration’s handling of the conflict in Gaza, chanting slogans including “Shame on you” and “Free Palestine.” In the latest phase of Dublin policing, Irish police launched the largest security operation in the country’s history ahead of further demonstrations tied to major European meetings later this week. The latest status is that the man in his 50s has been charged and is due to appear in court, while the other two arrested men were released without charge.