World · Europe · 3 hrs ago
Youssef Siher detained in Milan over alleged role in protest group
Youssef Siher, 30, has been detained in Milan over his alleged role in the Movimento 17 ottobre group.
Investigators consider him a leading figure in the group, which used Instagram and Telegram.
The case is linked to clashes in central Milan last weekend.
Prosecutors have accused Siher of incitement to commit crimes and organized violence at public demonstrations, as well as terrorism-related offences.
These are allegations, not findings of guilt, and the reported charges include different legal provisions.
Siher is a researcher and freelance journalist who has studied and worked in Milan and lives in Brescia province.
He has been transferred from police custody to prison; the reports give no further information about what happens next.
Youssef Siher, 30, was detained on orders from Milan prosecutors and questioned over his alleged role in the Movimento 17 ottobre.
Investigators describe him as the movement’s leading figure and say he organised or administered its Instagram page and Telegram group.
The case concerns alleged incitement to commit crimes and organised violence at public demonstrations; ANSA also reports a terrorism-related allegation.
The movement has been linked to clashes in central Milan the previous weekend.
Siher’s wife is also under investigation, according to ANSA.
- Who
- Youssef Siher, a 30-year-old Italian of second-generation immigrant background, is under investigation. ANSA says his wife is also under investigation.
- What
- He was detained and questioned over his alleged role in Movimento 17 ottobre. The reported allegations include incitement to commit crimes and organised violence at demonstrations.
- When
- He was detained on October 24, 2026. The movement was formed after protests the previous week, according to Il Fatto Quotidiano.
- Where
- Siher was questioned at Milan police headquarters and was transferred to prison, according to ANSA. He is formally resident in the province of Brescia.
- Why
- Investigators allege he organised or administered the movement’s social media page and group and was involved in incitement and organised violence. ANSA also reports a terrorism-related allegation.
Investigators and authorities
Movimento 17 ottobre
Alleged role
Investigators and authorities
Investigators say Siher was the movement’s leading figure and allege he organised its online presence.
Movimento 17 ottobre
The movement’s published statements reject traditional political representation and say, “We represent ourselves.
Protests and violence
Investigators and authorities
Authorities are investigating allegations including incitement to commit crimes and organised violence at demonstrations.
Movimento 17 ottobre
The movement’s statements defend its right to protest and say it will continue taking to the streets.
The Movimento 17 ottobre page was formed after protests, according to Il Fatto Quotidiano.
Clashes took place in central Milan, which ANSA linked to the movement.
Siher was detained on orders from Milan prosecutors and taken to police headquarters for questioning.
ANSA reported that Siher had been transferred from Milan police headquarters to prison.
- Age
- 30
- Residence
- Province of Brescia
- Investigation location
- Milan
- Reported movement platforms
- Instagram page and Telegram group
- Reported detention date
- October 24, 2026
- Reported additional suspect
- Siher’s wife, under investigation at liberty
6 sources
Fermato Youssef Siher, la mente della pagina Movimento 17 ottobre IL PROFILO
Youssef e il Movimento 17 ottobre, la Lega bresciana: «La città è in pericolo»
Milano, il presunto organizzatore della pagina Movimento 17 ottobre indagato per istigazione a delinquere aggravata
Youssef Siher, presunta "mente" del Movimento 17 ottobre, portato in questura e interrogato
What people are saying
The response of the State will be immediate.
We represent ourselves.
We do not trust the institutions and this government.