Two priests were arrested in mid-December after allegedly overseeing the conversion of a Muslim university student, local media reported.
The female student fled to neighbouring Ethiopia but later returned to her family. The Coptic Bishop of Khartoum was questioned by the police for several hours last Thursday, a figure close to the Church told The Tablet.
A little-known group called al-Qaeda In The Nilien States issued a statement threatening violence against Sudan’s Copts unless the woman was returned to Sudan.
Sudan has become overwhelmingly Muslim following the 2011 secession of the mainly Christian and animist south.