A large stone fell a height of two storeys and crashed through the windscreen of a parked car in Qui-si-Sana, fortunately injuring no one.
The incident happened yesterday in Dragut Point Street during renovation work.
The case was reported to the police by the owner of the car, a Fiat Punto, who said the dashboard was also damaged.
People commenting on Facebook pointed out that there had been No Parking signs for the spot, but others said the date on it was wrong.