The country has failed to satisfy the World Anti-Doping Agency's demands.
The confectionary giant is in the middle of a five-year deal as sponsor of the Kids' Athletics program.
Sir Craig Reedie speaks to Newsweek in the second part of an exclusive interview.
Sir Craig Reedie speaks to Newsweek on the difficulties of restoring faith in sport.
Mara Yamauchi, Britain's second fastest female marathon runner, says the organization may be beyond repair.
IAAF President Sebastian Coe also severs ties with Nike
Former Olympian is also an ambassador for Nike