About 16 U.S. military personnel, including one general officer, have been disciplined for mistakes that led to the bombing of a civilian hospital in Afghanistan last year that killed 42 people, a senior U.S. official said Thursday.

According to officials, no criminal charges were filed and the service members received administrative punishments in connection with the U.S. airstrike in the northern city of Kunduz. A number of those punished are U.S. special operations forces.

And while none was sent to court martial, in many cases a nonjudicial punishment, such as a letter of reprimand or suspension, can effectively end a military career. The officials were not authorized to discuss the matter publicly, so spoke on condition of anonymity.

The Pentagon is expected to release the full report on the investigation on Friday.