Longitude, a three day music festival, takes places across the weekend in Marlay Park in Dublin.
The US State Department has issued a security alert for the Longitude festival, which is getting under way this evening and will continue until Sunday.
It has urged US citizens here to avoid Marlay Park and surrounding areas, and to 'exercise caution' in the vicinity.
It is also advising people to 'keep a low profile' and notify friends and family of their safety.
A Garda spokesperson has said they have been made aware of the warning from US authorities.
#Dublin #Ireland: Reports indicate a potential for violence at the Longitude Festival taking place from July 5-7 in Marlay Park. Police have increased event security and are monitoring the situation. Be aware of your surroundings and exercise caution if in the area. pic.twitter.com/buBHuD5JRo
— Travel - State Dept (@TravelGov) July 5, 2019
The organisers of Longitude haven't had it easy in the run-up to the event.
On Tuesday, headline act A$AP Rocky was detained by Swedish authorities as part of an investigation into an alleged assault, and then today it was confirmed that he wouldn't be able to perform in Marlay Park.
He's been replaced by rapper Ski Mask The Slump God.