Works by artists Andy Warhol and Alexander Calder will be sold at a charity auction in November for orphaned and other vulnerable children in Africa, Sotheby's said on Tuesday.
The second Art for Africa auction, which will be held on November 17 in New York, will benefit the Africa Foundation, which supports children in south and eastern Africa's poorest rural communities.
In addition to Calder and Warhol, whose work has commanded high prices during the past decade, U.S. artists include Peter Beard, Alex Katz, Nick Cave, Ross Bleckner, Matt Magee and Jeff Sonhouse.
Works by African artists such Mary Sibande, Sue Williamson, Dylan Lewis, Peterson Kamwathi, Beezy Bailey, Creative Block, Mikhael Subotzky and others will also be auctioned.
The first Art for Africa auction, held in London in 2009, raised $750,000.
"The first highly successful sale in London saw enormous enthusiasm from collectors for works by some of the rising stars of African and international contemporary art," said Scott Nussbaum, contemporary art specialist at Sotheby's.