An antigovernment protester shouts slogans during a demonstration demanding the resignation of Yemeni President Ali Abdullah Saleh, in Sanaa,Yemen. Mr. Saleh spoke in a rare appearance before a cheering crowd outside his presidential palace in the Yemeni capital Friday on a day of dueling demonstrations. Muhammed Muheisen/AP
Yoshiko Sugawara, a tsunami survivor, cries as her niece leaves on a boat named 'Sunflower' from the island of Oshima for the mainland. Through burnt ships and debris, the Sunflower sails to bring food, clothing and families to isolated victims of a devastating earthquake and tsunami on Japan's Oshima Island off the northeastern Sanriku coast. Damir Sagolj/Reuters
A close-up view shows the eyes of a chimpanzee at the Villa Lorena animal refuge center in Cali, Colombia. Jaime Saldarriaga/Reuters
Mime artist Claudia holds an artificial red rose as she waits for an audience to perform for in central Granada, southern Spain. Marcelo del Pozo/Reuters
School children attend a prayer memorial held for victims of the Japan earthquake and tsunami in the southern Indian city of Hyderabad. Krishnendu Halder/Reuters
A woman sells drinks as she walks beside trucks stuck in a traffic jam about 3 miles from the Indonesian port of Merak near Cilegon, Banten Province, as trucks line up to board the ferry to take them across to the island of Sumatra. Beawiharta/Reuters
Two men talk to each other as they attend the first Tehran Friday prayers in the Iranian New Year. Morteza Nikoubazl/Reuters
A young girl passes the time with her teddy bear at a center for evacuees fleeing leaked radiation from the damaged Fukushima nuclear facilities in Soma, Fukushima Prefecture, Japan. Experts are worried that anxiety caused by the fear of radiation may cause serious health problems for residents in the months and years ahead. Wally Santana/AP
Firefighters spray foam over police officers during a protest at the minister-president's office in Brussels. Members of Brussels' fire brigade are demanding clearer rules with regard to nominations and promotions. Yves Herman/Reuters
Defense Secretary Robert Gates boards his military aircraft in Amman after a private meeting with Jordan's King Abdullah II. Charles Dharapak/AP
A model presents a creation for the 19th Hempel Award design contest during China Fashion Week, in Beijing. Jason Lee/Reuters
Nuclear and Industrial Safety Agency spokesman Hidehiko Nishiyama (r.) huddles with his aide during a press conference on the crippled Fukushima Daiichi nuclear complex, in Tokyo. AP
A French Mirage 2000 fighter jet (r.), accompanied by a French Rafale (l.), refuels from an airborne Boeing C-135 tanker aircraft from the Istres military air base during a refuelling operation above the Mediterranean Sea. France continues its military air sorties over Libya with NATO indicating that the no-fly zone operation could last three months. Jean-Paul Pelissier/Reuters
The Cambridge University rowing crew practice on the River Thames in Hammersmith, west London. The rowing crews from Oxford and Cambridge will compete in the 152nd Boat Race between the two universities. Toby Melville/Reuters
Somali children swim during a hot day in a rock pool in the Indian Ocean in the capital of Mogadishu, Somalia. Mohamed Sheikh Nor/AP
Spectators enjoy sunshine during the Snowboard-Cross FIS World Cup Final in Arosa, Switzerland. Alessandro Della Bella/AP
Riot police advanced on protesters in Istanbul's Taksim Square shortly after Prime Minister Erdogan warned the peaceful demonstrators to clear out or be forcibly removed.
Riot police fired water cannons and tear gas on protesters in Istanbul's Taksim Square and neighboring Gezi Park on Saturday, an intervention that came shortly after the prime minister warned that security forces "know how to clear" the area.
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