PITTSBURGH — A Mexican grocery store in Pittsburgh has again been targeted with anti-immigrant graffiti.

The first time Las Palmas was vandalized in December, some local high school students painted over the graffiti phrase “Go back to Mexico” with a mural.

Now police say someone vandalized the mural, sometime overnight Wednesday into Thursday.

The spray-painted words included “Illegal Trespassers” and “America Haters.”

Police say they don’t have any suspects.