Bitcoin fell to its lowest in a month on Thursday after Russian forces fired missiles at several cities in Ukraine and landed troops on its coast, sparking a sell-off of riskier assets and sending oil past $100 a barrel.
Bitcoin fell as much as 7.9 percent to $34,324, its lowest since January 24, and was last trading down 4.9 percent.
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Smaller coins that typically move in tandem with bitcoin also fell, with ether losing as much as 10.8 percent.