None of the 29 Chinese workers abducted after an attack in a volatile region of Sudan have been freed, Chinese state media said Tuesday, dismissing reports that some of the workers had been released.

The workers were abducted Saturday by militants in a remote region in the country's south. Sudanese state media reported Monday that 14 of them had been freed, but the official Xinhua News Agency and China Daily newspaper said all 29 were still being held.

Camilla Williams, believed to be the first African-American woman to appear with a major U.S. opera company, has died. She was 92.

Williams died Sunday at her home in Bloomington, Indiana, her attorney, Eric Slotegraaf, said Monday. She died of complications from cancer, said Alain Barker, a spokesman for the Indiana University Jacobs School of Music, where Williams was a professor emeritus of voice.

Former Brazil left back Roberto Carlos says he will retire from football by the end of the year.

The 38-year-old Roberto Carlos has a contract with Russian club Anzhi until 2013 but said he will stop playing either in June or in December of 2012.

New Jersey's largest city must produce a list of documents related to a $100 million pledge to its public schools from Facebook founder Mark Zuckerberg, a judge ruled Friday.

The ruling stemmed from a lawsuit brought by the American Civil Liberties Union on behalf of a group representing Newark schoolchildren that is seeking more transparency about the donation. The Associated Press and other news outlets also have made such requests.

Thailand is welcoming Twitter's new policy to censor tweets in specific nations where the content might break laws.

Technology minister Anudith Nakornthap said Monday the new policy was a "constructive" development. The Southeast Asian country routinely blocks websites with content deemed offensive to the Thai monarchy.

German police say a thief was in for a surprise after making off with a red plastic box from the back of a station wagon. Inside were seven wooden penises of varying sizes, 100 condoms, and instructional material for sex education classes at a local counseling center.

Police in Goettingen said in a statement that the material worth about €200 ($260), was stolen early Friday morning. They they are appealing to the thief to simply drop the box back somewhere where authorities can find it and return it to the center.

The Asian Football Confederation on Monday urged football's top lawmaking body to approve a headscarf with safety features for use by Islamic female players.

Football governing body FIFA banned the hijab or headscarf in 2007 for safety reasons, a move condemned by Islamic leaders and sports officials.

Amylin Pharmaceuticals won approval Friday for its long-delayed diabetes drug Bydureon, a next-generation treatment that requires fewer injections than the company's 7-year old diabetes medicine, Byetta.

Bydureon is a once-a-week version of Byetta, which is taken twice a day to control blood sugar. Amylin executives say the new drug's convenient regimen will give it a competitive advantage in the marketplace. After multiple delays however, it enters a crowded market, including one diabetes treatment in the same class that has shown superior results.

Cyprus' Finance Ministry says it's confident that the island's banks will be able to recapitalize on their own and won't need government support.

The ministry says Cyprus' economy has "strong foundations" and adds that it will soon unveil a growth-oriented package of measures that it's preparing in partnership with the private sector.

A government-run Saudi Arabian newspaper reports that for the first time in the conservative Muslim country, women will be allowed to attend football matches in one of the country's stadiums.

Al-Sharq newspaper on Saturday quoted unnamed officials as saying that women will be able to watch the matches in a new facility that will be completed in 2014 in the western port city of Jeddah.