Police in Northern Ireland have informed the US Secret Service that a potentially sensitive document related to President Joe Biden's visit to Belfast was found on a city street. The document detailed how officers planned to keep the city safe during Biden's stay at the Grand Central Hotel. Local reports suggest that it was from the Police Service of Northern Ireland and that it contained information on road closures, commanders assigned to various posts, and phone numbers. The man who found the document described it on a BBC radio show. However, no details of Secret Service's security plans or operations were included, so the president's movements were unaffected. Biden visited Northern Ireland to commemorate the 25th anniversary of the Good Friday Agreement, which ended 30 years of violent conflict in Northern Ireland. He will continue his trip in the Republic of Ireland, where he will meet Ireland's president and taoiseach, or prime minister, and address a joint session of the Irish Parliament.