CAIRO: Egyptian Presidential nominee and former Secretary General of the Arab League Amr Moussa called on authorities to immediately summon the Israeli ambassador to Egypt for questioning following the death of three Egyptians along the Egypt-Israel border Thursday. “Israel and any other country should be aware that the era in which our sons are killed without any suitable and strong reaction has ended,” read a comment Moussa posted on the social media website Twitter. The presidential candidate warned Israel of the repercussions for killing Egyptian soldiers on the border. He also offered his condolences to the soldiers' families. Thursday, Egyptian soldiers were killed along the Egyptian-Israeli border as the Israeli military pursued gunmen who attacked Israeli buses in the Red Sea city of Eilat.