Detectives in Middleton are investigating after up to 100 cars were vandalised overnight.
It happened in the early hours of Monday 6 October 2014, when around 100 cars were damaged.
The vandalism has taken place on numerous streets in and around Middleton town centre.
Detective Constable Jason Ruff from Rochdale division, said: â€œWe have received a large number of reports this morning from residents in Middleton who have come out to find their cars have been vandalised, some have had the tyres slashed along with other damage.
â€œThere is no other way to describe these acts other than total and utter wanton vandalism.
“This is criminal damage on a significant scale and it is not acceptable.
“I am therefore asking anyone who lives in the Middleton area to come forward with any information they may have that will help us catch the culprits.
â€œWe are taking this matter extremely seriously and we will do everything we can, with the public’s help, to identify those responsible for this senseless acts of vandalism.”
Anyone with any information is asked to call police on 0161 856 8701 or independent charity Crimestoppers on 0800 555 111.