A U.K. court delays extradition of WikiLeaks founder Julian Assange to the U.S.

A demonstrator holds a placard, after Stella Assange, wife of WikiLeaks founder Julian Assange, released a statement outside the Royal Courts of Justice, in London, Tuesday. (Alberto Pezzali/AP)

LONDON — Julian Assange won't be heading to the United States — at least not immediately.

In a partial victory for the WikiLeaks founder, London's High Court on Tuesday delayed his extradition to the U.S., where he faces espionage charges for one of the biggest national security leaks in American history.