"We strongly condemn the Egyptian aggression this morning on Derna and which we consider to be an assault against Libyan sovereignty," Omar Homaydan, the spokesman of the parliament announced.
Meanwhile, Libya's internationally recognized prime minister, Abdullah al-Thani called for airstrikes against ISIL and al-Qaeda targets in the country.
"I ask world powers stand by Libya and launch military strikes against these groups. This threat will move to European countries, especially Italy," he said in an interview to Reuters.
Earlier on Monday, Egypt's air force announced that it killed between 40 and 50 ISIL militants during airstrikes in Libya after the kidnapping and execution of 21 Egyptian Christian Copts, Egyptian state television reported Monday.