Tributes have been paid to Irish model and autism campaigner Alli MacDonnell who died suddenly at the age of 37 on Monday, February 4.
The mother-of-four, who was from Rathfarnham, was a regular contributor to Ireland AM and was known for her campaigns for Autism Ireland.
Tributes have flooded in on social media following her death.
The RTÉ LifeStyle Instagram posted: "We here at RTÉ LifeStyle were so sad to hear of the passing of Alli MacDonnell today. Our thoughts are with her friends and family."
PR Sonia Harris said her "heart goes out to" MacDonnell's children, while radio presenter Crossy said she was "such a beautiful person".
I’m in utter shock. I can’t believe Alli is gone. I just can’t believe it. My heart goes out to Alex, Sara, Harry and Siena. Too sad. RIP Alli MacDonnell. ❤️
— Sonia Harris (@SoniaHarrisPR) February 4, 2019
RIP Alli... x
— CROSSY (@CrossyTweets) February 4, 2019
Shocked....
Such a beautiful person ❤
Alli worked tirelessly to raise awareness of autism she was a great ambassador and a beautiful soul! RIP thoughts are with your family and children xxx https://t.co/1dKO9WfTEd
— Sandy (@NotoriousSODEE) February 4, 2019
In memory of a beautiful person I was proud to call a friend. Alli MacDonnell I cannot imagine a world without you. May you find peace with the angels and may your family and friends find comfort in your lasting legacy. RIP xxxx https://t.co/8IBSmQ4u3f
— Darragh McGann (@McGannDarragh) February 4, 2019
Heard this very early today & still in shock. Such a wonderful soul taken far too soon. Such a tragedy. RIP Alli. You'll be very missed. https://t.co/Nz8G6p0dH8
— Fran Winston (@Celticpussycat) February 4, 2019
To a beautiful person inside & out. Shared so many laughs with this gorgeous girl. Far too young to be taken away. Heaven has gained an angel. RIP Alli MacDonnell. 😪😪 pic.twitter.com/D3r0sMs4sH
— Deric Ó hArtagáinTV (@deric_tv) February 4, 2019
RIP Alli, so heartbreaking to hear of your passing... https://t.co/SafTwxcQP0
— Caitriona O Connor (@Caitrionaoconno) February 4, 2019
So sad to hear of the passing of Alli MacDonnell. Met her recently on @RTERadio1 Hourglass show with @reglooby Was so impressed by her. Such a lovely hardworking woman who campaigned for autism. I remember her speaking about kindness .....and I thought about how kind she was. pic.twitter.com/NlB7GNUmok
— Eleanor McEvoy (@eleanormcevoy) February 4, 2019
MacDonnell is survived by her four children: Alex, 17, Sara, 15, Harry, nine, and Siena, two.