TITLE: GCN CIRCULAR NUMBER: 32586 SUBJECT: GRB 220926B DATE: 22/09/26 11:24:44 GMT FROM: Diego Gotz at CEA D. Gotz (CEA Saclay), S.Mereghetti (INAF, IASF-Milano), C.Ferrigno, E.Bozzo, V.Savchenko (ISDC, Versoix), L.Ducci (IAAT, Germany and ISDC, Versoix) and J.Borkowski (CAMK, Torun) report: a gamma-ray burst lasting about 20 s has been detected by IBAS in the IBIS/ISGRI data at 10:38:11 UT of 2022 September 26. The refined coordinates (J2000) are: R.A. = 273.9353 deg DEC. = -37.2414 deg with an uncertainty of 1.0 arcmin (90% c.l.). A plot of the light curve will be posted at http://ibas.iasf-milano.inaf.it/IBAS_Results.html