Bitcoin has fallen by more than $4,000 to $40,800 at one point amid market concerns about increased tensions between Ukraine and Russia that threaten to breakout into all out war.
There are suggestions some 500 explosions have been heard near the Russian controlled area of Donbas in Ukraine as western leaders warn of false flag operations.
Source: https://www.trustnodes.com/2022/02/17/bitcoin-crashes-7-as-russia-roils-markets