Archbishop Bernard Hebda said in a statement posted on the archdiocese’s website that the investigation targets Bishop Michael Hoeppner of the Crookston diocese.
"The date was chosen as a sign of the will to build life and fraternity where others sowed death and destruction," said a communique by the Vatican press office Sept. 11.
He also recalls learning that his colleague and fellow fire chaplain, Franciscan Father Mychal Judge, was among the first known victims of the South Tower's collapse.
A major human rights crisis was triggered after police forces and pro-government groups cracked down on nationwide protests that began in April 2018 against a series of reforms mandated by President Daniel Ortega.