According to Yahoo News:

Liam Payne was found dead after falling from his balcony in Buenos Aires, local officials reportedly told Argentine media.

La Nacion, a national newspaper in Argentina, was first to report the news and claimed the 31-year-old British singer fell from the third floor of his hotel in Buenos Aires. ABC News confirmed the report citing local police. 

Payne rose to fame alongside Harry Styles, Zayn Malik, Niall Horan, and Louis Tomlinson as a part of boy band One Direction. The band shot into fame in 2010 after finishing third on the British version of “The X Factor.” The group disbanded in 2016 as many members went on to explore solo ventures.

Liam Payne was part of K104's KFEST 2018 at Bethel Woods Center for the Arts. See a video of his AWESOME performance with Rita Ora below: