Officers said they think this person may be able to help with enquiries.
Const. Matthew Walker said: “We are investigating following a report that a teenager was approached by someone, acting suspiciously, in the vicinity of the bus station in Dungannon on a number of occasions in April.
“If you can help Police with their enquiries please call the 101 number, quoting reference number 86621415. Alternatively information about crime can be passed via the independent Crimestoppers charity on 0800 555 111.”