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.

'Partnership Leads' appointed of new school grouping system
Businesses to get more money towards cost of training staff
Andium marks record year for new homes in Jersey
Princess Anne opens Jersey Zoo gorilla enclosure
Tarifa Jet and Caesarea Trader return to service
Jersey Post returns to profit
Could harnessing the youth vote change the election?
Inclusive island-wide fundraising challenge asks for 'moment of understanding'