Ukrainian officials say one person was found dead after the office of President Viktor Yanukovych's party was set alight. Opposition sources say at least three anti-government protesters were killed.

Dozens of protesters and police were injured in a new eruption of violence after nearly a month of relative calm.

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Anti-government protesters throw Molotov cocktails as they attack an office of the pro-presidential Party of the RegionsReuters
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Interior Ministry members are set alight as they stand guard during clashes with anti-government protesters in KievReuters
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Interior Ministry members help their colleague who was burned during clashes with anti-government protestersReuters
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Protesters throw Molotov cocktails at an office of the pro-presidential Party of the RegionsReuters
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Protesters throw stones during clashes with police in KievReuters
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Anti-government protesters cheer as they attack an office of the pro-presidential Party of the RegionsReuters
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Interior ministry members take cover during clashes with anti-government protestersReuters
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Interior Ministry members clash with anti-government protestersReuters
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Interior Ministry members injured during clashes with anti-government protesters are helped by colleaguesReuters
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Interior Ministry members rest after being injured during clashes with anti-government protestersReuters
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Interior ministry members aim their weapons during clashes with anti-government protesters in a street near the parliamentReuters
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A woman carries stones during clashes between anti-government protesters and Interior Ministry membersReuters
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Protesters pass each other stonesReuters
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Protesters throw stones and petrol bombs towards Interior Ministry officersReuters
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An Interior Ministry member extinguishes a fire during clashes with anti-government protestersReuters
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A protester throws stones as a vehicle burns in KievReuters
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Anti-government protesters escort an unidentified manReuters
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Fire rages around Interior Ministry members after Molotov cocktails were hurled by anti-government protestersReuters
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Ukrainian opposition leader Vitaly Klitschko holds a stretcher while transporting a victim of the clashesReuters
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A protester pulls a burning tyre during clashes with policeReuters
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Anti-government protesters attempt to break a door inside an office of the Party of the RegionsReuters
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A boy wearing makeshift protective gear walks past a burning truckReuters