Two people are in critical condition following a collision Saturday night at Highbury Avenue South at Glanworth Drive.
London police say the vehicles were travelling in opposite directions when they collided at the intersection about 7:45 p.m.
An adult male and an adult female were taken to the London Health Sciences Centre and are in critical condition.
Two other people were transported to the St. Thomas-Elgin General Hospital with non-life threatening injuries.
Highbury Avenue between Glanworth Drive and Manning Drive was closed for several hours.