Swastikas and anti-Semitic messages, like "death to Jews," were spray-painted on houses and businesses in a Jewish-Arab neighborhood in Jaffa, Israel, United Press International reports.
Some of the hateful tags were directed specifically at Jewish people living in Jaffa, Haaretz reported. Police said they don't know yet who is responsible but are investigating security camera footage in the area.
Although Jaffa is one of the most ethnically diverse cities in Israel, a recent spurt of real estate development has led to an increase in the city's Jewish population, according to Haaretz.
The coastal city, which is connected to Tel Aviv, has also experienced a recent spate of ethnically motivated crimes, including beatings, an attempted fire-bombing of a synagogue, and an incident in which more than 100 graves in a Muslim cemetery were vandalized.
The news comes as President Barack Obama arrived in Israel on Wednesday to make a show of support for Israel, the U.S.'s closest ally in the region.