Police are investigating extensive damage to two excavators at the Murray Mouth between 2 and 5 February.

The bodies and windows of the excavators were smashed, resulting in thousands of dollars' damage.

Anyone who saw any suspicious activity in the vicinity of the Murray Mouth over that weekend or has any dashcam or CCTV footage or information that may assist the investigation is asked to contact Crime Stoppers on 1800 333 000 or online at www.crimestopperssa.com.au