Bosnia-Herzegovina has detained 11 people suspected of terrorist activities, including fighting alongside Islamic State (IS) militants in Syria and Iraq or recruiting and raising money for terrorist groups.
Police said more than 100 officers took part in the operation in the capital, Sarajevo, and towns across the country on November 13.
Prosecutors said it had evidence some of the suspects had weapons and explosives.
In April, Bosnia introduced jail terms of up to 10 years for those who fight or recruit for militant groups abroad.
The November 13 arrests were part of a security operation, dubbed "Damascus," launched in September.
Sixteen suspected Islamic militants were arrested at the time, five of whom were remanded in custody.
Officials estimate around 150 Bosnian citizens have joined Islamist groups fighting in Iraq and Syria and some 20 have been killed there.
Based on reporting by AP, AFP, and Reuters