Seventeen people have been arrested in European countries as part of a joint operation against suspected members of a terrorist group, Italian police said on Thursday.

Seventeen people have been arrested in European countries as part of a joint operation against suspected members of a terrorist group, Italian police said on Thursday.

The operation was code-named “JWEB,” police said, promising to give more details later.

Those detained are suspected of “international terrorism,” a spokesman said, adding that none of the arrested was Italian.