*Warning: Viewer discretion is advised due to violent nature of this video Disturbing footage of a fatal shooting at The Regency Hotel in Drumcondra this afternoon has emerged online. One man was shot dead, while three men were injured after multiple shots were fired at a boxing weigh-in around 2.30pm. Witnesses said three gunmen dressed in Garda style uniforms entered the hotel carrying AK47 assault rifles. It has since been confirmed that contrary to reports, the gunmen entered the premises carrying handguns. The injured parties are in the Mater and Beaumont hospitals. Video: Storyful News According to The Irish Times, plain clothed Gardaí and armed detectives stayed local to the weigh-in, as there was a security concern due to an expected gangland presence at the sporting event. Reporting from the scene, UTV news editor Mick McCaffrey tweeted that the deceased was a 35-year old man from Crumlin:

Man shot dead is a 35 year-old from Crumlin. Regarded as being in charge of logistics for Kinihan cartel's drugs shipments

— Mick McCaffrey (@mccaffreymick) February 5, 2016

The scene is sealed off and Gardaí are appealing for information from the public regarding the incident. Following today’s incident, Box Nation confirmed the scheduled fight in the National Stadium has been cancelled:

Following today's incident at the Dublin weigh in, tomorrow's show from the National Stadium has been cancelled. — BoxNation (@boxnationtv) February 5, 2016