A Mercedes convertible had its driver’s side window smashed sometime between 10.45am and 11.05am yesterday (Thursday).
Damage was also caused to the driver’s side door and a wing mirror.
The red CLS 320 was parked near the Old House pub in Melbourne Street, Northampton, when the incident happened.
A police spokesman said: “Around the same time, two men were seen loitering near the vehicle and one was seen to hit it with a large rock.
“The men then made off along Elizabeth Walk.”
The offenders are described as white and in their twenties with slim builds.
One had olive skin and wore a shiny black, hooded top with a white Adidas symbol on the back, navy Adidas tracksuit bottoms with red stripes and black trainers.
The other wore a blue baseball cap, a blue sweatshirt with a white logo on the chest, blue tracksuit bottoms and red trainers.
Witnesses or anyone with information about the criminal damage can contact police on 101 or Crimestoppers anonymously on 0800 555111.
Editor’s note: We were originally told by police that the incident took place in Wellingborough, although this information was incorrect and we have amended the story accordingly.
We apologise for any confusion caused.