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Russian forensic investigators and security personnel examine the site of a bomb attack in Kizlyar on March 31. A suicide bomber disguised as a police officer set off one of two blasts that killed 12 people in Russia's volatile North Caucasus, just two days after attacks in Moscow left 39 dead. Nine police including a local chief were among the dead in the attack. The attacks in Moscow have been linked to the same region.
Bombings, murders, and gunfights between authorities and a rising extremist insurgency on Russia's seething southern flank have become so common in recent months that even Russian media might have scarcely noticed Wednesday's attacks had it not been for a pair of devastating terrorists strikes in the Russian capital of Moscow on Monday that killed 39 people and riveted the world's attention on Russia's growing terrorist problem. Zaur Halikov/Newsteam/AFP/Newscom
People place flowers and light candles at the site of the explosion at Park Kultury in Moscow, Russia, on Tuesday. During rush hour Monday, two female suicide bombers detonated explosives at two subway stations in downtown Moscow. On Tuesday, Russia began a national day of mourning for the victims of the attacks. Dmitry Lovetsky/AP
At Christ the Saviour Cathedral in Moscow, a clergyman conducts a religious service for those killed in Monday's subway explosions. Alexander Zemlianichenko/AP
A man leaves Park Kultury subway station in Moscow on Tuesday in the wake of Monday morning's terrorist attacks by two female suicide bombers. Posters of a missing girl are fixed on the entrance doors. Ivan Sekretarev/AP
A train moves through Lubyanka Metro station, a sign for the station is seen in the background, on March 30 as Russia observed an official day of mourning for victims of the two suicide bombings on March 29. vladimir Davydov/Reuters
People place flowers at Lubyanka subway station in Moscow on Tuesday. Dmitry Lovetsky/AP
US Ambassador John Beyrle lays flowers at the site of the explosion at Lubyanka subway station on March 30. Dmitry Lovetsky/AP
At the Christ the Savior Cathedral on Tuesday, people attend a religious service for those killed in the subway explosions on Monday in two Moscow Metro stations. Alexander Zemlianichenko/AP
Russian President Dmitry Medvedev, seen at the Gorki residence in Moscow, works at his desk on Tuesday as Russia observes a national day of mourning in the wake of Monday's subway explosions that killed 39 people and left more wounded. Dmitry Astakhov/RIA-Novosti/Presidentia Press Service/AP
The Russian flag flies at half mast over Moscow's Kremlin on Tuesday. Ivan Sekretarev/AP
An Interior Ministry officer keeps watch with a bomb-sniffing dog at Lubyanka Metro station in Moscow on March 30. Alexander Natruskin/Reuters
Flowers pile up at the Park Kultury subway station on March 30. Dmitry Lovetsky/AP
A person touches a list of the subway blast victims on the wall in Lubyanka station in Moscow, which was hit March 29 by an explosion. Sergey Ponomarev/AP
Candles, photos, and flowers are placed at Lubyanka station in Moscow's Metro on Monday in the aftermath of two explosions by female suicide bombers in the subway system. Sergey Ponomarev/AP
Flowers are left in memory of the victims of a bomb explosion at Park Kultury Metro station in Moscow, Russia, on March 29. Two female suicide bombers killed at least 39 people during rush hour on Monday at Lubyanka and Park Kultury stations. Denis Sinyakov/Reuters
Interior Ministry officers keep watch at Park Kultury Metro station in Moscow on March 29. Denis Sinyakov/Reuters
Women comfort each other at the closed entrance to Lubyanka station, which was hit earlier Monday by an explosion from a female suicide bomber. Anna Shevelyova/AP
Commuters are sparse, uncommon for a Monday afternoon, in a subway train stopping at Park Kultury station in Moscow on Monday after the morning rush-hour attacks on the subway system by two female suicide bombers. Misha Japaridze/AP
An Emergency Ministry officer uses a mobile phone in downtown Moscow on March 29. Sergey Ponomarev/AP
Interior Ministry officers walk into an underground passage in front of the exit to Park Kultury Metro station in Moscow on Monday. Denis Sinyakov/Reuters
Emergency Ministry officers enter the Park Kultury subway station in downtown Moscow. Two female suicide bombers detonated bombs on Moscow's subway system as it was jam-packed with rush-hour passengers on Monday morning. At least 39 people were killed and over 70 injured in the blasts. Misha Japaridze/AP
Passengers try to walk down the stairs during rush-hour at Prospekt Mira subway station in Moscow, Russia, on March 29. In the middle of Moscow's rush hour, two female suicide bombers set off bombs at two stations in the subway system: Lubyanka station and Park Kultury. Alexander Zemlianichenko/AP
Police officers evacuate people from Park Kultury station in downtown Moscow on Monday following the two blasts from female suicide bombers. Pavel Golovkin/AP
Near the Park Kultury subway station in Moscow, people walk across the Moskva River on Monday as bomb-sniffing dogs patrol in the aftermath of a bombing during rush hour. Misha Japaridze/AP
Emergency Ministry officials walk out of Park Kultury Metro station in Moscow on Monday. Vladimir Davydov/Reuters
Police with bomb-sniffing dogs patrol near Park Kultury Metro station in downtown Moscow on March 29. Pavil Golovkin/AP
Emergency Ministry officers are seen outside the Park Kultury station in Moscow after suicide bombers detonated explosives on two packed Moscow Metro trains. It was the worst attack in the Russian capital for six years, officials said. Tatyana Makeyeva/Reuters
Moscow Mayor Yuri Luzhkov speaks to the media on Monday after two explosions hit Moscow's subway system in the morning. APTN/AP
A woman reacts as ministry officers block her way in front of the exit of Lubyanka Metro station in Moscow following an explosion in the subway system during morning rush hour. Reuters
People ride the bus after train service was disrupted amid the two bombings in Moscow's subway system on Monday. Denis Sinyakov/Reuters
Emergency workers are seen from security cameras in a passageway at Lubyanka station in central Moscow after a bomb exploded during Monday morning's rush hour. Emergency Ministry spokeswoman Svetlana Chumikova said 23 people were killed at the Lubyanka station. AP
Russian President Dmitry Medvedev speaks during an emergency meeting in Moscow on Monday after two female suicide bombers killed at least 39 people and injured over 70 on packed Moscow subway trains. Medvedev declared Russia would act 'without compromise' to root out terrorists in the wake of the attacks. Vladimir Rodionov/RIA Novosti/Kremlin/Reuters
Police officers evacuate people from Park Kultury subway station in Moscow on Monday after two explosives blasted the Russian capital's subway system in the morning. Pavl Golovkin/AP
In Pictures: Derby Day devotees, Kenyan style
Photos of the Day: Photos of the day 05/16
In Pictures: Dazzle like Beckham
In Pictures: Weather extremes 2013
Photos of the Day: Photos of the day 05/15
In Pictures: Duchess Kate's royal baby bump
Photos of the Day: Photos of the day 05/14
In Pictures: Keffiyeh is rebel chic
Saudi woman scales Everest with group of 64 climbers Saturday. Raha Moharrak, a 25-year old graphic designer, is the first Saudi woman to have reached the summit of Mount Everest.
Mountaineering officials say 64 climbers, including a Saudi Arabian woman, have successfully scaled Mount Everest from Nepal's side of the mountain.
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