TITLE: GCN CIRCULAR NUMBER: 40151 SUBJECT: Fermi Gamma-ray Burst Monitor trigger 766511207/250416657 is not a GRB DATE: 25/04/16 16:56:40 GMT FROM: oindabimukherjee@gmail.com O. Mukherjee (USRA) reports on behalf of the Fermi Gamma-ray Burst Monitor Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 766511207/250416657 at 15:46:42.41 UT on 16 April 2025, tentatively classified as a GRB, is in fact not due to a GRB. This trigger is likely due to local particles."