A synagogue in Allawah, South Sydney, was defaced with swastikas and hateful graffiti, including messages glorifying Adolf Hitler.

Additional slogans, such as “Hitler on top,” the Arabic phrase “Allah hu Akbar,” “Free Palestine,” “F**k Israel” and “Jew dogs,” were spray-painted on the building’s exterior walls.

Local police discovered the vandalism during a routine patrol early Friday and have opened a hate crime investigation.