The entertainment world is mourning the loss of Tito Jackson, a founding member of the iconic Jackson 5.

Entertainment Tonight reported on Sunday (Sept. 15) that Tito, 70, died following a suspected heart attack while driving from New Mexico to Oklahoma, according to Steve Manning, a longtime Jackson family friend and former manager.

People later reported that Tito’s son Siggy Jackson confirmed the news of his passing, though there is currently no official cause of death.

Tito was an integral part of the Jackson family’s musical dynasty. He, along with his brothers Michael, Jermaine, Marlon, and Jackie, formed The Jackson 5 in the 1960s. Their debut single, “I Want You Back,” became an instant sensation, reaching No. 1 on the Billboard Hot 100, as did their subsequent hits “ABC” and “I’ll Be There.”

They were later inducted into the Rock & Roll Hall of Fame in 1997.

Beyond his work with The Jackson 5, Tito pursued a solo career, releasing his debut album Tito Time in 2016. His single “Get It Baby” reached No. 19 on the Billboard Adult R&B Airplay chart.

Amid the news, Tito’s sons TJ, Taj, and Taryll have taken to Instagram to share their grief and confirm the devastating news with a heartfelt message:

“It’s with heavy hearts that we announce that our beloved father, Rock & Roll Hall of Famer Tito Jackson is no longer with us. We are shocked, saddened, and heartbroken. Our father was an incredible man who cared about everyone and their well-being.

“Some of you may know him as Tito Jackson from the legendary Jackson 5, some may know him as ‘Coach Tito’ or some know him as ‘Poppa T.’ Nevertheless, he will be missed tremendously. It will forever be ‘Tito Time’ for us. Please remember to do what our father always preached and that is ‘Love One Another.’ We love you Pops.”

They concluded with, “Your boys, Taj, Taryll, and TJ.”

Jonathan ‘Sugarfoot’ Moffett, a former drummer for the Jackson 5, also expressed his profound sadness on Facebook:

“There is great, great sadness in my heart, spirit, and soul tonight… I’m stunned and devastated to receive and hear this disheartening news. I love Tito like my brothers of blood relation… My thoughts are with my nephews in heart and spirit, 3T, and all his grandchildren. I love you all VERY much. You are my second family.”

Moffett continued, sharing his love and support for the Jackson family, including Tito’s mother Katherine Jackson: “Dear mother, I love you dearly. I love you, Tito Jackson, my brother… forever, still.”

The Jackson family is no stranger to tragedy, having previously lost Tito’s younger brother Michael Jackson in 2009, and their father, Joe Jackson, who passed in 2018 at age 89.

Just days before his death, Tito posted a message on social media from Munich, Germany, where he visited a memorial to Michael with his brothers. He wrote: “Before our show in Munich, my brothers Jackie, Marlon, and I, visited the beautiful memorial dedicated to our beloved brother, Michael Jackson.

“We’re deeply grateful for this special place that honours not only his memory but also our shared legacy. Thank you for keeping his spirit alive.”

As the world continues to process this loss, more tributes from fans and peers in the music industry are expected to come in, celebrating Tito’s life and legacy as both a musical icon and beloved family man.

Billboard has reached out to Tito Jackson’s representatives for comment.

This story is developing.