A man was killed and three people were wounded in clashes that erupted after Benghazi residents attacked an Ansar al Sharia checkpoint. At least 13 people have been killed in three days of clashes between the Awlad Suleiman and Qaddadfa tribes in Sebha. Fighting in Derna between militants from the Ansar al Sharia-linked Abu Slim Martyrs Brigade and the Islamic State-linked Council of Islamic Youth killed 12 people last week; unknown assailants also killed a female security officer in the city.