Protesters calling for Thai Prime Minister Yingluck Shinawatra to step down rallied in the heart of Bangkokon Saturday, clashing with police in the first major demonstration against the government since it came to power last year.

Although the rally site itself was peaceful, protesters on a nearby street tried and failed to break through a concrete police barricade, at one point ramming a truck into it. Both demonstrators and riot police lobbed tear gas canisters at each other.

Making a killing on initial public offerings used to be easy.

At the peak of the technology boom, little more than a decade ago, a plentiful supply of companies vied to sell stock on the exchanges, and investors were assured mouthwatering returns.

Shares of Research in Motion Ltd. Jumped nearly 14 percent Friday as investors seemingly grew more optimistic about a February launch of the Canadian company's much-delayed BlackBerry 10 smartphones.

RIM will release the latest version of its smartphone "not too long" after a Jan. 30 launch event, Kristian Tear, the company's chief operating officer, has said.

Arsenal has extended its stadium naming rights deal and shirt sponsorship with Emirates airline in a deal worth 150 million pounds ($239 million).

Arsenal's ground has been known as Emirates Stadium since the team moved into the new north London base in 2006 and it will continue to carry the name until 2028.

Another person has died of a mysterious respiratory virus and three more cases have been discovered in Saudi Arabia and Qatar, the World Health Organization said Friday.

"This brings the total of laboratory-confirmed cases to six," the Geneva-based U.N. agency said in a statement.

A watch which was one of Elvis Presley's last Christmas presents and a corset worn by Madonna on her 1990 "Blond Ambition" tour will be featured at a London auction.

The watch, estimated to sell for 6,000 pounds ($9,500) or more, is a diamond-set Rolex given to Presley by his longtime manager, Tom Parker. It is engraved, "Elvis merry Christmas your pal Col. Tom Parker." It was the last Christmas for Presley, who died the following year.

Organizers say American R&B star Chris Brown has canceled a stadium concert in Guyana after local protests over his 2009 beating of then-girlfriend Rihanna.

Brown was billed to headline a Dec. 26 show. But he drew the ire of women's rights groups and opposition lawmakers who said Brown would not be welcome in Guyana three years after his assault of Barbadian superstar Rihanna.

Lazio, Napoli and reigning champion Atletico Madrid were among the 13 teams to qualify for the knockout stage of the Europa League on Thursday.

However, there was a setback for another of the competition's big names as Liverpool was held to a frustrating 2-2 draw at home to Young Boys, leaving the English side's hopes of progressing to the last 32 in the balance.

Michael Schumacher's main goal entering his final Formula One race is to have some fun.

The seven-time world champion will be putting an end to F1's most successful career at the Brazilian Grand Prix on Sunday, hoping that he can enjoy the moment without the pressure of having to do well on the track.

Rafael Benitez is being coy about his prospects of staying at Chelsea beyond the end of the season, insisting on Thursday that his main ambitions as interim coach are to "win trophies and play good football."

The 52-year-old Spaniard was hired by the European champions on a seven-month contract Wednesday following the abrupt firing of Roberto Di Matteo.