At 23:00, as Forbes was just learning of the incident with Orzeł, Gruppe 5 was confronted by the Norwegian patrol vessel Pol III at the entrance to the Oslofjord.
23:00, og imens Forbes var ved at erfare om hændelsen med Orzeł, blev gruppe 5 opdaget af det norske patruljeskib Pol III ved indsejlingen til Oslofjorden.