AT around 14.33pm yesterday a terror attack took place at Westminster in London.
Police has confirmed that there are currently four dead and 29 people have been treated in hospital - seven of whom are in a critical condition.
Amongst the dead is PC Keith Palmer, who was stabbed by the attacker while protecting parliament.
The man who launched the attack also died after he was shot by firearms officers.
British Prime Minister Theresa May confirmed today that one Irish national was among those who were injured after the assailant drove through crowds on Westminster Bridge and attempted to gain access to Parliament.
Here is what the Irish in Britain have had to say about yesterday's tragedy...
Dan Mulhall, Irish Ambassador to Britain
I wish to extend my sympathies to all who were affected by today's terrible attack in Westminster. https://t.co/ULNBF3xXvV
— Daniel Mulhall (@DanMulhall) March 22, 2017
— Daniel Mulhall (@DanMulhall) March 22, 2017
Conor McGinn, MP
It is utterly devastating to know that a police officer lost his life protecting us and our Parliament. They are the best and the bravest.
— Conor McGinn MP (@ConorMcGinn) March 22, 2017
Fergal Keane, Journalist
#Westminsterattack worth remembering IRA bombed parliament in 1974,INLA killed Airey Neave there in 79, and Downing St mortared by IRA in 91
— Fergal Keane (@fergalkeane47) March 22, 2017
Dara Ó Briain, Comedian and Broadcaster
Paddy's weekend was about being proud to be Irish; but today I am, as always, fiercely proud to be a Londoner too.
— Dara Ó Briain (@daraobriain) March 22, 2017
Manchester Irish Festival
— #mancirishfest☘ (@mancirishfest) March 22, 2017
Russell James Alford and Patrick Hanlon, London-based Irish food bloggers
???❤️ The news from #Westminster is really unnerving and upsetting to hear. Our thoughts are with any victims of this atrocity and our utmost respect to the emergency service workers. In the almost 4 years since we moved to London, we've been worried about something like this happening. On a rare weekday afternoon which we spent around Central London, and so close to where Russell works at ITV on the South Bank, as well as having family working in Parliament, it is bringing a big news story too close to home. Stay safe and look out for each other London ?
Jarlath Regan, Comedian and Irish Man Abroad podcaster
Such a horribly dark day in London. Londoners are incredible. And those police officers. Sometimes this place amazes you. #LondonAttacks
— Jarlath Regan (@Jarlath) March 22, 2017
Nialler, Irish person living in Britain
Bit of London Irish wisdom in Kilburn pic.twitter.com/YThQdyz53j
— nialler (@nialler) March 23, 2017
Steve O'Sullivan, Irish person living in Britain
Hope London is ok ??
— ⚒Steve O'Sullivan⚒ (@TheSullis) March 22, 2017
Hellen Mallam, Irish person living in Britain
I worked in London during many IRA attacks. At no point did we blame all the Irish or contemplate leaving the city.
— Helen (@helenmallam) March 22, 2017
Christopher Hall, Irish person living in Britain
No point in speculating or using what happened today to back up your political views. Just have respect for innocent lives effected #London
— Christopher Hall (@chrishall9011) March 22, 2017
Dermot Rowan, Co-owner Orla Kiely
Maria Caulfield, MP
Thinking of all victims in Westminster today and our heroic police officers who keep us safe and put their lives on the line
— Maria Caulfield MP (@mariacaulfield) March 22, 2017
Martin Docherty, MP
Shocking news of Police officers death as well as the loss of other innocents: thoughts with all their families https://t.co/S2xKQkD2Bm
— Martin Docherty MP (@MartinJDocherty) March 22, 2017
Laura Whitmore, TV presenter and actress
My thoughts to anyone affected by what's happened in Westminster today #LondonLove ❤
— Laura Whitmore (@thewhitmore) March 22, 2017
Dermot O’Leary, Broadcaster and TV host
Ronan Keating, singer
My thoughts are with the families that lost someone yesterday in those senseless attacks in #LONDON. #LONDON has always welcomed all walks of life and we have always been free to be who ever we want to be in #LONDON. We can't let these mindless terrorists take that away. Stay strong #LONDON #MyLondon ❤
Niall Horan, singer
Thinking of London this morning from LA. . Stay safe everyone !!
— Niall Horan (@NiallOfficial) March 22, 2017
Sean Newton, Irish person living in Britain
Not every Muslim is a terrorist, just like not every Irish person is a member of the ira #WeStandTogether
— sean newton (@seanlfc82) March 23, 2017
Anthony, Irish person living in Britain
— anto.m vlogs (@anto_mvlogsyt) March 23, 2017
Sorcha McNally, Irish person living in Britain
— Sorcha McNally (@SorchaMcNally1) March 23, 2017