Cairo - Egypt's interior ministry is searching for the terrorists who attacked police vehicles near the city of Fayoum on Thursday night, killing a policeman and injuring three police conscripts, state news agency MENA reported. Unidentified gunmen fired "heavily and randomly" at three police vehicles driving on the Cairo-Fayoum ring road on Thursday July 20, 2017, the ministry said in a statement late on Thursday. The statement added that the injured were transferred to hospital. Egypt is battling Islamist militant groups that are mainly concentrated in the restive northern part of Egypt's Sinai Peninsula. Militants have also struck police and army personnel elsewhere in the country, including the capital.