The coastal Tarabin tribe attacked Monday IS-linked Wilayet Sinai terrorist group's bastions southern Rafah, local sources told Sky News Arabiya. The sources said that the Tarabin launched an armed campaign against the Islamist militants in response to their attack on the tribe's leader on claims of cooperation with Egyptian security agencies in North Sinai. The Tarabin has issued a joint statement stressed the necessity of tackling the problem of Islamist insurgence in the Sinai Peninsula, adding that all tribes should pledge to help curb this phenomenon. The statement read that the tribe pledges to fight Wilayet Sinai, formerly known as Ansar Bayt Al Maqdis, who kill people on trumped-up charges, storm houses, and turn their Land into a battlefield, Al Watan newspaper reported. Egypt, particularly Sinai, has been plagued with Islamist insurgence targeting military and police personnel and sites, since the ousting of president Mohamed Morsi in July 2013.