Prime Minister of Pakistan Nawaz Sharif, at front eighth from left, and high ranking officials of the Pakistan armed forces offer funeral prayers over the remains of the 16 Pakistan Navy officers, Thursday, Aug 12, 1999, at Pakistan Air Force base in Karachi. Pakistan's top civilian and military leaders gathered Thursday for a memorial service for the 16 servicemen killed when an Indian MiG-21 fired a missile into their naval patrol aircraft on Tuesday. The armed forces of India and Pakistan are on high alert following following clashes over the last two days.