The man driving a school bus that struck and killed a 5-year-old boy in Boston late last month had an expired school bus certificate at the time of the collision and has since resigned, Boston Public Schools confirmed Thursday afternoon.

The bus driver accused of hitting and killing a 5-year-old Boston boy in April has resigned, NewsCenter 5 has learned. The driver, who WCVB is not identifying, had previously been put on administrative leave after the Hyde Park crash on Washington Street in front of the boy's home.

City councilors Erin Murphy and Ed Flynn say information about the incident is coming out too slowly. They're considering a city council hearing to discuss school bus safety procedures.