Security tightens ahead of Joe Biden's visit to Ireland

US Army chinook helicopters leave Dublin Airport on an apparent dry-run as preparations continue for the visit of Joe Biden. Picture: Damien Storan
US President Joe Biden will touch down in Belfast on Tuesday evening, with a tight security detail set to accompany him on a four-day trip to the island of Ireland.
Mr Biden, who Taoiseach Leo Varadkar has described as the "most Irish-American president since John F Kennedy", has roots in both Louth and Mayo, and will visit both counties throughout the week, as well as Dublin.