Action SA says in the statement that Mentor has been ill for some time and was also hospitalised for several months.

Mentor was the first State Capture whistleblower - who was not afraid to speak out in public.

ALSO READ: Mentor set to return to #ZondoCommission

She testified in front of the State Capture Commission in 2018 - on how she was offered a position as Minister of Public Enterprises by a member of the Gupta family at the Gupta residence.

ALSO READ: Former ANC MP Vytjie Mentor joins ACDP

The 58-year-old Mentor was also a former Member of Parliament for the ANC before joining Action SA as its Provincial Chairperson in the Western Cape.

Jacaranda