Queen Elizabeth II has arrived in Dublin at the start of her historic visit to the Irish Republic.
The British monarch is the first to set foot in Ireland on a state visit since it became independent from London in 1921.
The four-day event is aimed at showing that the two countries are now reconciled after decades of strife.
But a coded warning in London yesterday followed by a series of bomb alerts in Dublin today are stark reminders that a small minority are still unhappy about the British presence in the North.
British Queen arrives in Dublin for historic visit