He is understood to be under the age of two

The child was hit by a vehicle in Rathmintin, Jobstown, on Tuesday afternoon (October 7).

Theo McEnroe, who was believed to be under the age of two, was treated by paramedics at the scene, however, he was pronounced dead after being taken to the hospital.

Gardaí confirmed in a statement: "A male infant was transferred from the scene to Children’s Health Ireland (CHI) at Crumlin, where he was subsequently pronounced deceased.

"A family liaison officer has been appointed to support the family at this time."

Shane McEnroe, Theo's father, confirmed the little boy's death in an emotional post on social media.

He wrote: "My son, you are my world. My boy, I’ll forever love you, son. I love you so much, this feels like a bad dream."

The heartbreaking post immediately prompted hundreds of tributes and messages of support online.

One person wrote: "So heartbreaking. Shane, we are all thinking of you and your family right now. No words can express our thoughts for you all, keeping you all in my prayers, sending you love and strength."

"I’ve no words, my heart is broken for you," another commented.

Someone else wrote: "My heart is shattered for you … life is just not fair. Rest easy, beautiful boy, you will be greatly missed beyond words."

A local business has urged people to gather in Rathmintin at 7.30 pm today (October 9) for a candlelit vigil in memory of Theo, per Extra.ie.

They shared: "We would love it if everyone could join to light up the sky for beautiful Theo.

"Everyone is welcome, known and unknown to the family. All the love and support are needed right now, really appreciated."

A technical examination of the scene has since been carried out by Garda forensic collision investigators.