Tito Jackson, an original member of the Jackson 5 pop group and brother of the late Michael Jackson, has died aged 70, US media report.
An official cause of death is yet to be determined.
Tito performed in the iconic ensemble with brothers Jackie, Jermaine, Marlon and Michael, who died in 2009.
He was recently in Munich ahead of a performance that the group were due to give.
Steve Manning, a long-time Jackson family friend and former Jackson family manager, told Entertainment Tonight that Jackson died on Monday.
The news was confirmed in an Instagram post by his three sons, Taj, Taryll and TJ Jackson, who were themselves an R’n’B/pop trio, 3T, in the 1990s.
“We are shocked, saddened and heartbroken,” they wrote. “Our father was an incredible man who cared about everyone and their well-being.”
They continued: “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.”
The Jackson 5’s hits included ABC, The Love You Save and I Want You Back.