WASHINGTON- The U.S. Justice Department has charged Russian oligarch Konstantin Malofeyev with violating sanctions imposed on Russia after its invasion of Ukraine, saying on Wednesday .

Attorney General Merrick Garland said authorities had also disrupted a type of global malicious computer network known as a "botnet" controlled by a Russian military intelligence agency.

"The Justice Department will continue to use all of its authorities to hold accountable Russian oligarchs and others who seek to evade U.S. sanctions," Garland told reporters in Washington.

The department last month launched a federal "KleptoCapture" task force that is working to further strain the finances of Russia's oligarchs to pressure the country to cease its invasion of Ukraine.

(Reporting by Sarah N. Lynch and Jan Wolfe; Editing by Scott Malone)