The WikiLeaks founder is currently serving a 50-week prison sentence for violating British bail conditions in 2012.
UK home secretary Sajid Javid on Friday signed a request to extradite WikiLeaks founder to the US.
On April 11, police forcibly removed the WikiLeaks founder from the Ecuadorean Embassy near Harrods department store in central London. Assange took refuge in the embassy there in 2012 while being sought by Swedish authorities for questioning in a sexual assault investigation.
(With inputs from AFP)
Assange, 47, is accused of violating the Espionage Act by releasing a vast trove of classified military and diplomatic files in 2010 about US bombing campaigns in Afghanistan and Iraq.