Four men were convicted in Germany on Thursday in connection with a foiled terrorist plot against Western targets, court officials said.

The men had begun mixing a huge amount of explosive material that could have resulted in a strong blast, bigger than attacks in 2005 on London’s public transport network and the 2004 Madrid railway bombings, authorities said.

Three of the men — two Germans and a Turk — were arrested in September 2007. The other was arrested later.

The Germans — Fritz Gelowicz and Daniel Schneider — were sentenced to 12 years in prison. Turkish citizen Adem Yilmaz received 11 years. Attila Selek, a German citizen of Turkish descent, received five years.

The group said it wanted to target the Ramstein Air Base and other U.S. and Uzbek military and diplomatic installations in Germany, German authorities said.

(Source: http://www.cnn.com/)