Police in Germany on Wedndesday launched anti-terror raids against Islamist preachers suspected of trying to recruit men to fight for ISIS in Syria and Iraq.

The raids took place in the west German state of North Rhine-Westphalia this morning, the state’s criminal police said, and targeted the towns of Duisburg and Dortmund among others.

At least three people were targeted in the raid. They are suspected of seeking members and supporters for ISIS since last year.

One of them also is believed to have given the group financial and logistical support, though no arrests have been made.