A visibly angry Egyptian President Abdel Fattah al-Sisi pledged tougher laws against militants at the funeral on Tuesday of top prosecutor Hisham Barakat, assassinated in a Cairo car bombing.

"The arm of justice is chained by the law. We're not going to wait for this. We're going to amend the law to allow us to implement justice as soon as possible," Sisi said in a televised speech surrounded by Barakat's mourning relatives.