A 3-year-old was killed, and his twin sister and mother are badly injured after being hit by a vehicle in Livonia late Sunday night.

Police in Livonia, Michigan are investigating a hit-and-run in which a toddler was killed and his mom and twin sister were left in critical condition, cops say.

Police in Livonia, Michigan are investigating a hit-and-run in which a toddler was killed and his mom and twin sister were left in critical condition, cops say.