Egyptian warplanes killed suspected militants and destroyed eight vehicles they were using to smuggle weapons into the country from neighbouring Libya. <br/>'<br/>Army spokesman Tamer el-Rifai said in a statement in Cairo today the air force warplanes raided the border area, foiling a new infiltration attempt and destroying eight vehicles that were carrying large quantities of weapons, ammunition and explosive material. <br/><br/>A military statement said those travelling inside the vehicles were killed during the operation, without specifying how many.<br/><br/>Army spokesman said the air strikes on the western border were part of operations to track down terrorists who killed 16 policemen in a shootout in the region last week.