TITLE: GCN CIRCULAR NUMBER: 18116 SUBJECT: Fermi GBM trigger 150806450 is not a GRB DATE: 15/08/06 11:56:46 GMT FROM: Oliver Roberts at UCD/Fermi O.J. Roberts (UCD) reports on behalf of the Fermi GBM Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 460550875/150806450 at 10:47:51.42 UT on the 6th of August 2015, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is due to local particles."