A second teenager was also seriously injured and two others were hurt in the collision.

Police have since arrested three people in connection with the incident.

The crash - involving a Skoda Superb, Audi A4 and a Ford Tourneo Classic - happened in Auchenhowie Road, Milngavie, at about 9.05pm on Sunday.

A 21-year-old man, a rear seat passenger in the Skoda, died at the scene.

A 16-year-old girl, also a rear seat passenger in the Skoda, is in a critical condition at Glasgow's Queen Elizabeth University Hospital (QEUH).

The 19-year-old male driver of the Skoda suffered serious injuries and was also taken by ambulance to the QEUH. Two other male passengers, aged 17 and 23, sustained minor injuries.

The 65-year-old female driver of the Audi and her 82-year-old male passenger were uninjured.

The 38-year-old male driver of the Ford and his passengers, aged 29, 30 and 31, were also uninjured.

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Police Scotland confirmed the three men in the Skoda - the 17, 19 and 23-year-old - have been arrested as enquiries continue.

The road was closed for investigation works but has since reopened.

Call for witnesses

Sergeant Jack Swindells, from the Greater Glasgow Road Policing Unit, said: "We are keen to hear from anyone who witnessed the collision or who may have dashcam footage from Auchenhowie Road from around the time of the crash.

"Information can be passed to police via 101."