The activists gathered to demand the release of Dr. Hussam Abu Safiya from Israeli detention while depicting Gazan mothers and babies alongside a man in a blood-covered Netanyahu costume.
"It's the same centuries-old stereotypes and blood libels, repackaged by replacing ' Jews' with 'Zionists," said Israel's ambassador to Sweden Ziv Nevo Kulman.
"Glorifying a regime responsible for the murder of six million Jews and countless others is both dangerous and deeply offensive," said the European Jewish Congress.