After the man failed to get any cash, he ran through the back door to a getaway vehicle and fled the area, Foster said.
An officer on patrol spotted the vehicle and stopped it in the 3500 block of Reynolds Street. One person fled from the vehicle on foot but was “immediately” caught by police, Foster said. Three people were in custody Tuesday afternoon.
Detectives are trying to determine each person's role in the robbery, Foster said.
The attempted robbery is at least the sixth robbery or attempt – several of them armed – over the past three weeks in Fort Wayne's northeast quadrant. Last week, police arrested a suspect in the Nov. 20 robbery of a Georgetown Dollar General store.
Bill Hartman, lead administrator of Blackhawk Christian Schools, said the schools locked down for about 15 minutes Tuesday after police notified them of the attempted robbery.