Can you help with our investigation?

Northamptonshire Police are appealing to the public to seek to identify and thank a group of teenagers who went to the assistance of a female victim of a sexual assault in Croyland Park, Wellingborough on Monday evening at 10.50 PM. 

The offender is currently unknown and described as a 5’11” white male with a neck tattoo, early 40s and a grey beard. He was wearing a black or dark blue tracksuit and black Nike tech gloves and spoke English. 

Detectives have been assigned to investigate this matter, and local officers will be increasing patrols in the local area. 

Any information from the public would be gratefully received.