SPRINGFIELD, Ore. (AP) — City officials and residents are proposing safety improvements after a driver struck and killed three children in a busy Springfield, Oregon, intersection last month.

The City Council is discussing safety proposals at a meeting Monday night.

Mayor Christine Lundberg told The Register-Guard newspaper she wants everything on the table. Ideas range from increased enforcement to more public safety announcements.

The Feb. 22 collision killed 8-year-old John Alexander Day, 5-year-old McKenzie Mae Hudson, and 4-year-old Tyler James Hudson. Their mother has been released from the hospital.

The driver told investigators he saw a green light as he approached the intersection, but several witnesses have reported the driver ran a red light. Police are investigating, and prosecutors will determine whether the driver faces criminal charges.