Drivers in Northern California were stunned after discovering a hacked road sign emblazoned with the words "Trump has herpes".
The electronic sign, placed to warn drivers about traffic delays, lit up with the words just before 11pm last night.
A passer-by snapped the image of the sign mocking President Donald Trump and shared it on Twitter.
The California Department of Transportation (Caltrans) said the Sacramento sign was placed there temporarily while a project to build a new bridge was underway.
But despite being locked with a password, hackers were able to bypass their security.
It comes after other signs in the area were hacked, with one reading “free hookers ahead”.
Another sign in Napa was reportedly taken over in July to carry the racist message: "Caution Asian drivers".
The unflattering statement has now been fixed but Caltrans is now investigating how the hackers gained access.
Earlier this week, a huge electronic advertising billboard in Cardiff city centre was taken over.
The hackers displayed offensive images including Nazi symbols and references to Sharia Law.
