A Turkish citizen suspected of links to a thwarted plot to murder US soldiers and civilians in Germany has been extradited to face trial, German federal prosecutors said Wednesday.

The suspected "Islamist terrorist", identified only as 28-year-old Salih S., is accused of working for the Islamic Jihad Union (IJU) since November 2006, the chief federal prosecutor's office said in a statement.

He is believed to have supplied equipment to a member of the so-called Sauerland cell, which in March was convicted of mounting what the court called the biggest terror plot in German post-war history.

"This included three GPS devices, night-vision goggles and three compass watches as well as other equipment" and a bank card belonging to him, the statement said.

Salih S. was arrested in Turkey in November 2008 but released in February 2009 on bail. He was taken into custody again in June this year on the basis of a German arrest warrant and extradited Tuesday.

He is also suspected of leaving Germany, where he had been living, in March 2007 to receive training at an IJU camp in the Pakistani militant stronghold Waziristan, after which he took part in "several combat missions" for the group.

The four-member Sauerland cell, which included two German converts to Islam, was sentenced to between five and 12 years in prison for planning to stage what the court called a "monstrous bloodbath" with car bombings in German cities.