Paint was thrown over six cars and a post box in Haverhill last weekend.
The incidents took place overnight between Saturday and Sunday last weekend across four different streets.
White paint was thrown over three cars and a post box in Western Avenue, along with another car parked in Queensway. Red paint was thrown over a car in Ash Grove and blue paint thrown over a car in Beech Grove.
The total damaged caused to the vehicles is estimated to be in excess of £4,000.
Anyone with information about these crimes is asked to contact the Haverhill Safer Neighbourhood Team on 101 quoting reference HH/15/448, or Crimestoppers anonymously on 0800 555 111.