The authorities in Amsterdam said on Tuesday that they expected to make more arrests in connection with what they have called antisemitic assaults on Israeli soccer fans in the city last week, as well as related confrontations and incendiary behavior by both sides.

In the city government’s first detailed report on the events, the police said that 62 people had already been arrested in connection with the violence, including 10 people who lived in Israel.

Most of the arrests were for minor offenses, the authorities said: Forty-five people were issued fines for disturbing the peace, unruly behavior or being unable to show identification when requested by police officers. Nearly a dozen more cases remain under investigation. Four Dutch suspects are still being held on more serious charges, including two teenagers who are accused of assault and violence against the riot police.

The authorities did not specify why the Israeli residents had been arrested.

Officials said that they were still investigating whether the attacks had been organized.

“What happened over the past few days is a toxic cocktail of antisemitism, hooligan behavior, and anger over the war in Palestine and Israel, and other countries in the Middle East,” Amsterdam’s mayor, Femke Halsema, wrote in the report. The findings were to be presented to the City Council on Tuesday.

The report offered only a few new details about the attacks and about the inflammatory behavior and vandalism by some Israeli fans surrounding a soccer match between Maccabi Tel Aviv and Ajax Amsterdam last Thursday.