Three youths have been arrested following an attack on four teenagers.

The four victims were stabbed during an assault in Clydebank, West Dunbartonshire, that police are treating as attempted murder.

The incident happened at about 1.30am on November 21 when an 18-year-old male and three boys aged 15 were ''intentionally targeted'' in a lane running from Great Western Road towards the Auchentoshan Estate, police said.

Two of the 15-year-olds suffered life threatening injuries, while the 18-year-old and other 15 year-old boy were released following treatment.

Three youths, one aged 15, and two aged 16 years, have been arrested and are being detained in police custody.

A report will be submitted to the Procurator Fiscal.