Three Egyptian activists who were en route to join the Egyptian section of the humanitarian Global Sumud Flotilla sailing to Gaza have disappeared without trace, according to organisers. The last reported sighting of the activists was in the early hours of Tuesday morning. Organiser Ziad Bassioni said that their families reported that they failed to return home and have not been heard from since. Flotilla disappearanceIn a statement, the flotilla group denounced the presumed detention as “unjustifiable” and condemned Egypt’s repeated refusal to grant official permission to take part. On Wednesday night, Israel launched a mass attack, involving at least twelve military vessels, on the flotilla – mining the waters around the volunteer fleet and detaining crews.