Chicago police are searching for whoever spray-painted hateful symbols on at least four buildings in the city’s Little Village neighborhood.

The community center “Latinos Progresando” posted a picture on Facebook Saturday, showing the swastika someone spray-painted on its door. According to police, the building was one of three vandalized with spray paint in the 2700 block of West Cermak Road near South Washtenaw Avenue at around midnight.

A building on South Central Park Avenue near 25th Street was also defaced at around the same time. Chicago police said part of exterior wall was vandalized with spray paint.

No arrests had been made as of Saturday night.

Detectives were investigating.