Municipal workers in Upper Nazareth found on Tuesday some 25 Islamic State flags in the city’s industrial zone.

Authorities were investigating the incident. No arrests were reported.

Last week, police detained for questioning a 24-year-old teacher from Kfar Kara on suspicion of association with a terror organization after a search of his home resulted in the seizure of computers, other electronic devices, an Islamic State flag and various literature on the subject of jihad.

The suspect admitted that he brought the materials back to Israel from Jordan where he was studying. Police said the investigation was ongoing.

The Hadera Magistrates Court remanded the suspect to custody, but he was released to house arrest on Sunday.

Israel officially banned the Islamic State and anyone associating with it at the beginning of September. The decree outlawed meetings of any kind between Islamic State members and named it an illegal organization. Read the full story here.