A newly renovated historic synagogue in Greece was vandalized with what the country’s Jewish umbrella organization called “abusive slogans of antisemitic hatred.”

“Jewish snakes out” was among the slogans painted in bright blue on an outside wall of the synagogue in Trikala, a city in northern Greece that once was home to one of the country’s oldest Jewish communities.

The vandalism has caused “outrage and deep sadness,” the Central Jewish Council of Greece, or KIS, said in a statement

“We are reminded that the snake’s egg continues to hatch in our society, and that the fight against antisemitism must be continuous and vigilance uninterrupted,” it said.

The statement said authorities must “take all necessary measures to arrest and punish the perpetrators and to protect the Jewish sites of the city of Trikala, which has demonstrated its zero tolerance of intolerance and racism.”