It looks like a blade let go. What's curious is it looks like part of a blade is imbedded in the nose cowl at the 3 o'clock position which means something funky happened.
The incident occurs, then the blades start eating themselves, debris naturally went rearwards through the compressor causing a stall/surge blowing material forward out the past the IGV's into the cowling is about the best guess I can muster from one photo. Whatever happened it all looks concentrated around the 3 o'clock position.
Do you know what caused this ?
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