A judge has revoked the bond of the neighbourhood watch volunteer charged with killing 17-year-old Trayvon Martin and
ordered him returned to jail within 48 hours.

Circuit Judge Kenneth Lester said Friday that George Zimmerman misled the court about how much money he had available when his bond was set for $150,000 in April.

Prosecutors claim Zimmerman had $135,000 available that had been raised by a website he set up.

Prosecutors also say he failed to surrender a second passport. 

The defence says the finances are an innocent misunderstanding. 

Zimmerman has pleaded not guilty to second-degree murder and is claiming self-defence.