BERLIN—Germany and Swiss authorities have carried out a joint operation to detain four people who are accused of membership in or support of the ISIS terrorist group, officials said Tuesday.
One man was detained in Germany on Monday. He is accused of having prepared a serious act of violence endangering the state and of membership in a foreign terrorist organization, the country’s federal prosecutor said in a statement.
In Switzerland, the authorities detained three people, also on Monday, and carried out seven searches altogether, the country’s federal prosecutor’s office said.
Germany’s federal prosecutor’s office said the German suspect, identified only as Aleem N., had “long been a follower of jihadist and radical Islamic ideas.” He was detained in Roemerberg, southwest of Heidelberg….