A road sign meant to caution Winnipeg drivers about deer was hacked on the weekend and given a much more direct, and profane message.

The flashing message, that once stated "Be Alert For Deer" was reprogrammed with the message: "Slow The F-Down."

Brian Smiley, spokesman for Manitoba Public Insurance (MPI), said he's not sure how someone could have hacked into the security system.

Winnipeg police have been notified and have said the person responsible, if found, will likely face mischief charges.

Twelve of the large flashing signs in deer hot zones were erected two weeks ago to get motorists to slow down. There are more deer-vehicle collisions in Winnipeg each year, about 410, than any other single municipality in Manitoba, according to MPI.

The Crown corporation is conducting the pilot project in partnership with the police through October and November.

The signs are along Roblin Boulevard and Wilkes Avenue from Shaftsbury Boulevard to the Perimeter Highway.