A federal grand jury has indicted a man, his two sons and a woman for allegedly running a fraudulent international aircraft parts ring with operations in Ireland and the US.

The woman who got lost in the wilderness and set a signal fire that exploded into a devastating wildfire will not face charges, Arizona’s federal prosecutor has said.

A man arrested for allegedly causing the first of two wildfires which merged into the blaze that destroyed more than 400 homes in eastern Arizona is to appear in court today.