JERUSALEM—The websites of two Israeli medical centers as well as several other public Israeli websites, were hacked.

The websites for Tel Hashomer and Assuta medical centers, among the largest in central Israel, were down Wednesday morning.

The hospitals’ security systems held back the assaults and patient information was not compromised, according to the hospitals.

Following the attacks on the hospital websites, the websites for the Dan Public Transportation company, the Israel Festival, the Cinematheque and the Haaretz newspaper were simultaneouly attacked in the afternoon.

The Israel Festival website was changed to read “Free Palestine, death to Israel.” The other sites read “Jew = Nazi.”

The attacks come after successful assaults by anti-Israel hackers on the websites of the Tel Aviv Stock Exchange and El Al, as well as the exposure of thousands of Israeli credit card holders’ information.