Egypt's president says he wants a prominent militant captured in Libya this week extradited so that he can be "held accountable."Thursday's comments by President Abdel-Fattah al-Sisi were the first official word in Egypt on the capture of Hisham el-Ashmawi by a self-styled Libyan military force allied with Egypt.El-Ashmawi was captured in the city of Derna, a longtime militant bastion. He is the prime suspect in a series of high-profile terror attacks in Egypt, including a 2013 attempted assassination of Egypt's interior minister at the time.Al-Sisi said: "We want him so we can hold him accountable."Libya's chaos has enabled the rise of Islamic militants. A 2015 audio recording attributed el-Ashmawi has him proclaiming allegiance to the Islamic State group's rival, al-Qaeda, led by Egyptian militant Ayman al-Zawahri.* Sign up to News24's top Africa news in your inbox: SUBSCRIBE TO THE HELLO AFRICA NEWSLETTERFOLLOW News24 Africa on Twitter and Facebook.