The suspects were arrested last Tuesday after police found a semi-automatic firearm, a bottle of acid and an ISIS flag in their car during a roadside police stop near a prison in northern France.
The organization said the decision came in response to what it described as a growing wave of antisemitic violence and terror targeting Jewish communities worldwide.
A total of eight incidents at synagogues across the globe including in Liège, Belgium, Toronto and Oslo and Trondheim in Norway.
"True leadership requires saying clearly and without caveat that denying the suffering of victims is wrong. Not redirecting to privacy. Not managing the optics."
The announcement is the second report this month of antisemitic behavior by a conservative group at a Florida school.
The suspect, a naturalized US citizen with no criminal record, had recently lost family members in Lebanon due to an IDF airstrike.
The bombing is the second attack against a Jewish target in the Netherlands this week, after an explosive device detonated at a synagogue in the center of Rotterdam on Thursday.
Four men were arrested after a bomb exploded at a Rotterdam synagogue. Ashab Al Yamin, a Shi'ite terror group, claimed responsibility for the attack. No injuries reported.
"The federal government I lead will never leave any doubt about where we stand," Merz announced to the crowd. "We stand with Israel."
The group seemingly did not exist before this week and, unusually, does not have its own Telegram or social media channels. Usually, such groups create channels straight away.
Ayman Ghazali, a 41-year-old restaurant worker from Lebanon, had become a naturalized US citizen in 2016, after entering the country on an immigrant Visa.
