POLICE are investigating the theft of excavator attachments valued at $25,000 from a Keysborough construction site last week. Investigators said the thieves cut a padlock at the Somerfield Drive site between 5pm on Monday 12 September and 6.30am on Tuesday 13 September. Anyone with information can contact Dandenong CIU on 9767 7487 or Crime Stoppers on 1800 333 000.