Ireland's leading politicians will attend special mass later today
The threat level to MPs has been deemed to be "substantial" after the killing of David Amess.
Britain's Home Secretary says it follows a review by terrorism experts, following the fatal stabbing of the politician last week in Essex.
The 69 year-old was holding a constituency surgery with constituents in Leigh-on-Sea in Essex, when he was killed.
Priti Patel told the Commons there is no "credible or specific or imminent threat" right now, but also warned against MPs disclosing their arrangements: