Mystery surrounds a plane from Egypt loaded with money, fake gold and guns that was seized in Zambia.

The world might have remained oblivious to it all were it not for a journalist whose fact-checking website, Matsda2sh, accused officials in Egypt of involvement in the incident.

Soon after that Egyptian plainclothes security forces raided Karim Asaad’s Cairo home in the dead of night and arrested him.

At first he just disappeared. Nobody knew where or why Mr Asaad had been taken.