Dick Schoof said that due to the "major social impact" of attacks on Maccabi Tel Aviv fans on Thursday, he will remain in the Netherlands for a government probe.
The suspects are in custody for public violence against individuals and groups.
"An investigation is still being conducted on possible warning signs from Israel," Van Weel said in his letter late on Friday evening.
Dutch Jewish community aids stranded Israelis amid pogrom in Amsterdam.
An alleged "Jew hunt" was announced well in advance in the messaging app Telegram, prompting rioters to travel from far outside Amsterdam to attack Israelis.
Israelis describe the physical violence they faced in Amsterdam, and the story of two Chabad rabbis who helped those in need.
The Mossad issued a warning to security agencies in Israel and the Netherlands, requesting an immediate increase in security for Israelis attending the match and in the city.
Chabad collected wounded Israelis across Amsterdam, delivering them to a safe shelter and offering them a place for Shabbat.
El Al permitted to fly on Shabbat • New Israeli FM flies to Netherlands • IDF soldiers prohibited from flying to Netherlands
“Immediate, strong measures NOW. Why isn’t there an extra council of ministers? Where is the sense of urgency?” Wilders shared on X.