A teenager has been arrested on suspicion of committing a robbery at knife-point in St Helier.
Police say two 17-year olds were confronted by two other boys, one of whom then threatened them with a knife and made them hand over money and a mobile phone.
It happened at around ten to midnight yesterday on Trinity Road near the Robin Hood junction.
A 17 year old boy remains in custody.
Anyone who may have seen this incident or has any information is asked to contact police on 612612 or the independent charity Crimestoppers anonymously on 0800 555 111 or via their Anonymous Online Form at Crimestoppers-uk.org.