TITLE: GCN CIRCULAR NUMBER: 31043 SUBJECT: Fermi GBM trigger 657780594/211105201 is not a GRB DATE: 21/11/05 08:44:34 GMT FROM: Andreas von Kienlin at MPE <azk@mpe.mpg.de> A. von Kienlin (MPE) reports on behalf of the Fermi GBM Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 657780594/211105201 at 04:49:49.65 UT on 05 November 2021, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is likely due to local particles."