An 18-year-old woman has been airlifted to hospital with life-threatening injuries following a crash in Derby.
It happened at about 01:10 BST on Sunday at the junction of Friar Gate and Stafford Street.
A blue Renault Clio and a silver Mercedes E320 collided and a female passenger in the Clio was badly hurt.
The woman remains in a critical condition and the two male drivers, who were arrested at the scene, have been released while inquiries continue.
They also suffered minor injuries.
Anyone with dashcam footage or who witnessed the crash is urged to contact police.