A German-Afghan man whose information helped spark a European terrorism warning has been convicted of membership in al-Qaida.

Dapd news agency reported Tuesday that the Koblenz state court found Ahmad Wali Siddiqui guilty of membership in a terrorist organization and sentenced him to six years in prison. A 10 year maximum sentence was possible but the court said though he trained in terrorist camps on the border of Pakistan and Afghanistan, there was no evidence he was part of any plans for an attack.

The 37-year-old was captured by U.S. troops in Afghanistan in 2010. Information he provided to authorities on alleged al-Qaida plots targeting European cities prompted Germany and other nations to raise alert levels at Christmas time that year.

No attacks materialized.