Turkish shelling kills 55 Islamic State of Iraq and Syria insurgents in northern Syria in retaliation for rocket attacks on Kilis, a Turkish border town. [https:--www.reuters.com-article-us-mideast-crisis-syria-turkey-idUSKCN0XZ05R (Reuters)] [http:--www.dailyprogress.com-news-world-wire-report-turkey-attacks-is-in-syria-militants-killed-article_4b13cd44-6a6b-5be8-91ba-5d4b5cf3af2b.html ("Daily Progress")] Three Spanish journalists were released after being abducted around Aleppo, Syria, and held hostage by the Al-Nusra Front since 13 July 2015. [https:--www.telegraph.co.uk-news-2016-05-07-three-spanish-journalists-released-in-syria-by-al-qaeda-group-af- ("The Telegraph")]Turkey–ISIL conflict