People across the world have been celebrating St Patrick's Day today.
More than more than 430 iconic landmarks across 54 countries have been lit up in green as part of Tourism Ireland's Global Greening campaign.
Among them is the Empire State Building, the Burj Khalifa, and The Great Wall of China.
Back at home thousands of people have attended festivities across the province - with parades in Derry-Londonderry, Downpatrick, and Belfast, to name a few:
In Belfast a special concert has been taking place at Custom House Square, with The Vengaboys, The Whistlin’ Donkeys, as well as Irish dancers ‘Fusion Fighters’.
The atmosphere is starting to build for this years St Patrick’s Day Carnival Parade. Join us in the celebrations departing from Belfast City Hall at 12.30 today ☘️ #BelfastStPats pic.twitter.com/WKlQDO3JGJ— goQradio (@goQradio) 17 March 2019
Mayor Deirdre Hargey has been telling Q Radio's Gareth Stewart about her highlights of the day:
Meanwhile police have advised people out celebrating to drink responsibly.
In Belfast much of the police focus has been on the Holylands area.
The student area's seen widespread anti-social behaviour in recent years, with up to 17 arrests made last year.
Both Queen's and Ulster University say students who step out of line will face serious disciplinary procedures.