One of the worst reports we've had to share. Details are short and information is still waiting to come in. What we know is contained in the following BBC report:
"Nine people have been stabbed at a concert in Dublin's Phoenix Park.
(BBC)Two of them were seriously injured during the event, headlined by dance act Swedish House Mafia.
A 23-year-old man has been arrested, but gardaí are investigating whether more than one person was involved.
A man believed to be in his 20s died from a suspected drugs overdose at the concert. A Garda spokesman said he had sought medical attention at about 19:00 BST but later died in hospital.
Footage
"Gardaí have not been able to identify this man and are asking family and friends to check that loved ones have arrived home safely from the event," he added.
A series of big-name acts have been performing at Phoenix Park in the past few days
More than 45,000 people were at the concert, which also featured
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