Image caption Marvin joined the group in 1973 along with Ernie Isley and their cousin Chris

Marvin Isley, the youngest member of the American R&B band, the Isley Brothers, has died, aged 56.

Marvin Isley, who was the group's bass player, stopped performing in 1996 because of complications from diabetes, including the loss of his legs.

The Isley Brothers' career has spanned six decades, producing popular hits such as Shout, Fight the Power, Summer Breeze and Who's that Lady.

The group was inducted into the Rock and Roll Hall of Fame in 1992.

Mr Isley died on Sunday at a hospice near his home in Chicago, according to a hospital spokesman.

No cause of death was given but Mr Isley had had diabetes for more than 20 years and lost his legs because of the condition.

The Isley Brothers was formed in 1954 by Marvin's three older brothers. Marvin joined in 1973 along with Ernie Isley and their cousin Chris, playing on the band's 14 Top 10 hits, including Harvest for the World.

In 1984, Marvin, Ernie and Chris formed their own group, Isley-Jasper-Isley, and in 1985 had a No 1 R&B hit with Caravan of Love.

In 1991, Marvin Isley returned as member of the Isley Brothers.

He is survived by his wife, a son and two daughters.