A sting operation targeting the Al Qaeda international terrorist organization has netted 14 suspects in the Turkish province of Ankara, the Milliyet daily newspaper reports.

Police also seized a cache of 700 kg (1,500 lb) of ammonium nitrate at the house, a key ingredient in the creation of homemade explosives.

The suspects, detained Tuesday, are linked to a group active in Afghanistan. They are being held on suspicion of planning attacks on U.S. installations in Turkey. According to the report, the suspects wanted to avenge the assassination of Al Qaeda leader Osama bin Laden by U.S. Navy SEALS in Pakistan on May 2.

The operation swept across western Turkey after explosives and weapons were discovered. The provinces of Bursa and Yalova were also included after the Ankara raid, an Interior Ministry official told the Reuters news agency late Tuesday.

At least 60 people were killed and hundreds more were wounded in terrorist bombing attacks in Istanbul by Al Qaeda terrorists in 2003.