Drivers near the South Carolina-North Carolina state line have been warned to be on the lookout for zombies, hunters and tanks.

The Herald of Rock Hill reports that one of the electronic signs, which normally flash messages about construction or crashes, read "Zombies Ahead" on Sunday. Another flashed "Watch for Hunters," while a sign on the other side of the road said "Be alert for Tanks."

The signs are on Highway 160 near Fort Mill, S.C.

Highway Patrol Lance Cpl. Billy Elder says someone apparently tampered with the signs sometime before 4 a.m. Sunday.

So far, there have been no reports of the undead or tanks.

Hackers pulled similar pranks in 2009, using road signs to warn of zombies in Collinsville, Ill., and Austin, Texas.