Day in pictures

Riot police detained a protestor outside the government palace, La Moneda, in Santiago, Chile on Oct. 18, 2011. Protestors manned flaming barricades and clashed with police on the first of a two-day national strike called by students to protest against the government's education policies.

People attend a commemorative ceremony at the Gleis 17 (Track 17) memorial on the 70th anniversary of the deportation of Jews from Berlin to concentration camps during World War II on Oct. 18, 2011 in Berlin, Germany. On Oct. 18, 1941, the Nazis began deporting Jewish residents from Berlin by rail to concentration camps.

A revolutionary fighter searches a destroyed house for Muammar Qaddafi loyalists in downtown Sirte, Libya on Oct. 18, 2011. About 1,000 Libyan revolutionary troops have launched a major assault on Qaddafi's hometown, trying to capture the last area under loyalist control.

Palestinians celebrate the release of prisoners at the main square in Gaza City on Oct. 18, 2011. Hamas agreed to release Israeli soldier Gilad Shalit in exchange for 1,027 Palestinian prisoners, many of them serving life sentences for deadly attacks on Israelis.

U.S. Secretary of State Hillary Clinton gestures with Libyan soldiers upon her departure from Tripoli, Libya on Oct. 18, 2011.

A penguin has oil washed off by staff at the Tauranga Wastewater Treatment Wildlife Facility on Oct. 18, 2011 in Tauranga, New Zealand. Salvage crews continue to pump oil off the stranded cargo vessel Rena in an effort to remove as much as possible, since bad weather threatens to break the vessel apart and release more oil into the sea. Over 300 tons of oil have leaked from the Rena since it hit a reef on Oct. 5.

Sangey, 6, and Tenzin, 7, rest after hours of prayer at the Dechen Phodrang monastery Oct. 18, 2011 in Thimphu, Bhutan. About 375 monks reside at the government-run monastery that also doubles as a childcare facility for underprivileged and orphaned males.

Dr. Hannah Cobb from The University of Manchester looks at a Viking sword from the first fully intact Viking boat burial site on Oct. 18, 2011 in Edinburgh, Scotland. The five-meter long grave uncovered on the Ardnamurchan peninsula contained the remains of a high status Viking, who was buried with an axe, a sword with decorated hilt, a spear, shield boss and a bronze ring pin.

Sitting inside a plush Rainier Yurt, Brady White, who portrays Santa Claus, models as Brittany Leigh whispers to him. They are posing inside the "Dream Folly" gift presented during the unveiling of the Neiman Marcus Christmas catalog in Dallas, Texas on Oct. 18, 2011. The 18-foot-diameter yurt simulates a genie's bottle and comes with a $75,000 price tag.

Stephen Lambdin of the U.S. (right) fights Mexico's Salvador Perez during a quarterfinal men's Taekwondo match at the Pan American Games in Guadalajara, Mexico on Oct. 18, 2011.

Brazil's Sarah Correa strokes her way through a preliminary heat of the women's 800m freestyle at the Pan American Games in Guadalajara, Mexico on Oct. 18, 2011.

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