In this image made from video broadcast on Egyptian state television on Monday, Feb. 16, 2015, a fighter jet flies overhead in preparation to launch airstrikes against Islamic State targets in Libya (Photo: State TV)
Libya's Tripoli-based parliament strongly condemned on Monday an Egyptian air strike in the eastern city of Derna as an assault on the country's sovereignty.
"We strongly condemn the Egyptian aggression this morning on Derna and which we consider to be an assault against Libyan sovereignty," said Omar Homaydan, the spokesman for the General National Congress, the former parliament, reinstated by the faction that took over Tripoli in the summer.
Egypt said it launched an air strike against Islamic State targets in Libya after militants released a video showing the beheading of 21 Egyptians in Libya.
An internationally-recognised government led by Abduallah El-Thinni resides in the eastern city of Tobruk.
El-Thinni's Cabinet, however, is contested by another Islamist-led government headed by Omar El-Hassi and headquartered in the capital Tripoli.
A coalition of Islamist-led militias calling itself Fajr Libya (Libya's Dawn) has controlled Tripoli and a number of western areas since August 2014.
Meanwhile, IS in Libya, which formed in the last two years, maintains control of different patches of the country.
Last year, army forces led by Gaddafi-era Libyan general Khalifa Haftar regained control of the eastern city of Benghazi from Islamist militias.
Haftar's troops were later recognised as the national Libyan army.
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