A funeral mass has been held for one of the teenagers killed in a head-on collision in County Kildare last week - with a heavy police presence at Carlow for the event.
Jeremy O'Brien, 18, was in the car driving on the wrong side of the M9 motorway on 16 August when it collided with a car driving to Dublin Airport.
He and four others - Joe Carthy, 15, and three 17-year-olds Jack Kennedy, Kamil Pustkowski, and Alex McCarthy - were killed.
A child and three women from the same family, who were in the other car, are being treated for serious injuries in hospital.
On Monday, O'Brien was the fourth of the teenagers to be buried, with a mass taking place at The Holy Family Church in Askea, Carlow.
Armed Gardai - Irish police officers - were stationed at checkpoints on the roads leading to the town, where young men wore T-shirts with a picture of O'Brien on the front.
A horse-drawn carriage also arrived at the church to carry the coffin following the funeral mass.
During the funeral, Father Tom Little told mourners that there is a "deep sense of sadness and loss" after O'Brien's death.
"The death of a young person is always difficult to accept," he said. "There is something especially sad about a young life being taken suddenly, unexpectedly and before so many hopes and dreams have been realised.
"Today our grief and sadness is made even heavier because this was an accident that affected not just one person alone.
"Several lives have been lost and others have been seriously injured. Families have been changed forever."
See more from Sky News:
Kremlin tells Sky News 'UK adding fuel to the fire'
Cricket legends: Provide 'proper medical care' for Imran Khan
Should the UK be building new reservoirs?
It comes as outrage grows in Ireland about dangerous driving and the regulation of social media, after it emerged some of the teenagers had posted content of cars being stolen and driven illegally.
Prime Minister Andy Burnham condemned footage glorifying dangerous driving as "doing something that's truly reprehensible" on Monday.
Meanwhile, Sky News understands the UK government has spoken to TikTok about dangerous driving content being featured on the platform.
(c) Sky News 2026: Funeral held for Jeremy O'Brien, one of five teens killed in County Kildare head-on collision
Canadian politician threatens to cut off electricity to the US in response to Donald Trump's 50% tariffs
Guinea landslide kills 30 people after mound of waste collapses at landfill site
Prince Harry steps down from board of wildlife charity ahead of return to UK with Meghan
Maradona 'Hand of God' football sells for £2.5m
Imran Khan must get 'humane treatment and proper medical care' in prison, ex-cricket captains urge Pakistan
Dutch broadcaster AvroTros to boycott 2027 Eurovision Song Contest
Health of Norway's King Harald deteriorated at the weekend, say royal officials
Gianni Infantino: Nordic FAs lose confidence in FIFA chief and raise 'serious concerns'
Shein targets valuation of just $27bn in stock market flotation
