Cy Twombly fetches $70.5M at Sotheby's NY auction

NEW YORK (AP) — An abstract work by Cy Twombly from his "blackboard" fetched $70.5 million, an auction record for the artist, and a silkscreen by Andy Warhol of Mao Zedong brought in $47.5 million at Sotheby's sale of contemporary artworks on Wednesday.