CAIRO (AP) — Egypt’s interior minister says security authorities on Saturday arrested three suspected al-Qaeda militants who were planning to carry out suicide attacks on vital installations and an unspecified embassy.

Mohammed Ibrahim told a news conference Saturday that the men had been in contact with Dawood al-Assady, a leader of al-Qaeda in southeast Asian countries such as Pakistan.

Ibrahim said authorities seized 10 kilograms of ammonium nitrate, a key ingredient in homemade explosives, and discovered instructions issued by al-Qaeda on one of the men’s computers.

He said the suspected are also believed to have links with the so-called “Nasr City terror cell,” which was broken up last year and its members arrested on accusations of plotting attacks against public figures in Egypt.

Copyright 2013 The Associated Press.