The former One Direction band member fell from a hotel balcony in Buenos Aires on Oct. 16.

Liam Paynes family is heartbroken following theunexpected deathof theOne Directionband member at age 31.

Payne was still in Argentina afterattending bandmate Niall Horan’s concert.

Liam Payne

Liam Payne.Mike Marsland/WireImage

The late singer is survived by his 7-year-old sonBear, whom he shares with ex Cheryl Cole.

“Just a boy … ,” Twist wrote onInstagramalongside a photo of a red broken-heart emoji.

“To say Im heartbroken is an understatement, he began.

Louis Tomlinson, Liam Payne, Harry Styles, Zayn Malik and Niall Horan of One Direction perform onstage during Z100’s Jingle Ball 2012, presented by Aeropostale, at Madison Square Garden on December 7, 2012 in New York City

Louis Tomlinson, Liam Payne, Harry Styles, Zayn Malik and Niall Horan of One Direction.Kevin Kane/Getty

You will be forever missed Liam.

My heart goes out to your family parents and sisters and your son Bear and your 1D brothers.

“The worst news, he wrote onInstagram.

He just loved to sing.

He was always a joy, had time for everyone, polite, grateful, and was always humble.

Sending love and prayers to his family.