South Africa: Desmond Tutu in the hospital

Archbishop Desmond Tutu speaks on stage during the seventh annual meeting of the Clinton Global Initiative at the Sheraton New York Hotel on Sept. 21, 2011, in New York City.

Anti-Apartheid crusader and peace activist Desmond Tutu checked into a Cape Town hospital today for treatment of an ongoing infection.

"Archbishop Emeritus Desmond Tutu has checked into a Cape Town hospital for the treatment of a persistent infection and to undergo tests to discover the underlying cause," his foundation said in a statement.

The 81-year-old Nobel Peace Prize winner spent the morning in his office before going to the hospital, where the non-surgical treatment is expected to take five days.

More from GlobalPost: Retirement, Tutu style

Tutu was treated for prostate cancer in 1997.

Tutu is scheduled to travel to London in May to receive the $1.7 million Templeton Prize for his “lifelong work in advancing spiritual principles," Asianet reported.