Police are anxious to trace two males approximately 18 years of age seen running away from a damaged motor vehicle in Saundersfoot.
Sometime during the early hours of Sunday, the vehicle was damaged while it was parked outside the flats in Westfield Road.
Police say a witness has come forward and efforts are being made to locate the males responsible.
"It is only a matter of time before they are identified," said a spokesman.
Anyone with information is asked to contact PC270 Pugh at Tenby Police Station on 0845 330 2000.