Egypt's Tourism Ministry has held a church memorial service for Italian graduate student Giulio Regeni, whose body was found bearing signs of torture more than a week after he went missing in Cairo.

Tourism Minister Hesham Zazou said Saturday that the government is "extremely keen to get to the bottom of what had happened to him."

Regeni's body was found on the outskirts of Cairo nine days after he vanished on Jan. 25, the anniversary of the 2011 uprising, when police were out in force across the capital.

Egypt's Interior Ministry has denied that security forces had anything to do with his disappearance and said last month that investigators believe "personal reasons" were behind his torture and murder.