What to know about the espionage allegations against Germany's former intelligence chief

BERLIN (AP) — A former head of Germany’s foreign intelligence service who is charged with passing state secrets to a foreign intelligence service was ordered held in pretrial detention after a judge issued an arrest warrant on Wednesday.August Hanning, 80, who is “strongly suspected of treasonous espionage, spying out state secrets, attempted treason, and espionage,” led the Federal Intelligence Service, known by its German acronym BND, from 1998 to 2005. He was arrested on Tuesday.A former aide of Hanning, identified only as Manfred D. in line with privacy rules in Germany, was also arrested Tuesday and is already in pretrial detention. He's accused of aiding and abetting attempted treason and treasonous espionage.Prosecutors didn't reveal who exactly the two men were suspected of spying for or which foreign intelligence services they provided with classified information.Here's what to know about one of the biggest security breaches in German history:Germany's former top spy allegedly