The Lahore police on Saturday arrested a trainer of terrorists, Tameem alias Umar alias Abdur Rehman alias Tahir alias Wakeel, from Darbar Baba Haider Saeen near Lorry Adda. Police seized explosives, four hand grenades, detonators and material on various missiles and audio cassettes on jihad. A police spokesman said that Tameem was involved in the August 29 Liberty Market bomb blast. Police said that he was suspected of planning an attack on Christians. A senior police investigator said Tameem, an alleged member of a banned militant group, "wanted to attack Christians next week".