1. Thousands of riot police clashed with protesters Tuesday in Ukraine's capital, Kiev.
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3. At least 22 were killed and hundreds of others were injured.
Anti-government protesters carry a wounded policemen during clashes with riot police.
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An injured man is helped by anti-government protesters during clashes with riot police.
5. It was the deadliest day in nearly three months of protests against the government.
6. The protests began in November after President Viktor Yanukovych accepted a $15 billion bailout from Russia to back out from a deal with the European Union.
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8. Opposition leader Vitali Klitschko urged protesters to defend Kiev's Independence Square, where they were located.
9. "We will not go anywhere from here. This is an island of freedom and we will defend it," he said.
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Ukranian riot police take cover behind their shields during clashes with anti-government protesters.
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13. Protesters fought back police with rocks, bats, logs and homemade bombs.
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An anti-government protester throws a log during clashes with riot police.
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An anti-government protester prepares to throw a petrol bomb.
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An anti-government protester prepares to throw an molotov cocktail during clashes with riot police.
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Fireworks explode near anti-government protesters during clashes with riot police.
21. Despite the protests, President Yanukovych remains popular in the southern and eastern portions of the country, where ties to Russia are strong.
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23. According to the Associated Press, Russia "may have wanted to see Kiev remain calm through the Winter Olympics in Sochi, so as not to distract from President Vladimir Putin's games."
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An anti-government protester throws bottles during clashes with riot police.