A Jewish Israeli man was arrested Thursday, days before Holocaust Remembrance Day, for writing pro-Nazi Facebook posts.

The 55-year-old man was questioned by police on suspicion of identifying with and supporting the actions of the Nazis, which is prohibited under the law against Holocaust denial, a police spokesperson said.

Police requested permission from the State Attorney’s Office to detain the man, a resident of a town near Jerusalem.

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The pro-Nazi posts, on his personal page, were directed against Jewish immigrants from Eastern Europe, to whom he referred as “Ashkenazim.”

The suspect was questioned by the police’s cyber-crimes division in Jerusalem and was later released with restrictions. His file was passed to the State Attorney’s Office.

On Wednesday, police investigated Nazi images that appeared as screensavers on computers in a school in the central Israel city of Petah Tikva.

A police spokesperson said that “it appears that a minor, a student of the educational institution, did some work on a computer in one of the classes, in which he created a presentation with Nazi content.”

“He set that as the screensaver on that computer. Because that computer was connected to the network, the screensaver was also installed on other computers,” the spokesman said.

Police are also investigating several incidents of swastikas spray-painted in various locations in Petah Tikva in the past few weeks.