POLICE believe a missing Merbein teenager may have crossed into New South Wales.

Fifteen-year-old Dom was last seen on Boden Road in Merbein West about 7.30pm on September 14, and police believe he may have left his residence in the early hours of the following morning.

Police are investigating possible sightings of Dom in the Robinvale area about 10.30am on September 15, however the teen has no...