UN human rights experts are demanding that Egypt release an Islamist father and son who they say have been unlawfully detained since 2013, Reuters reports. An adviser to former president Mohamed Morsi Essam El Haddad and his son Gihad were finally acquitted of espionage in September after having life sentences quashed back in 2016. Despite this, Essam was handed a 10-year sentence for being part of an illegal group, while his son remains detained having been charged with the same crime.