Turkish police on Saturday detained 29 foreigners and three Turks during a peaceful protest against plans to build a nuclear power plant near a Black Sea port city.
The police broke up the protest in front of the governor's office and "forcibly took" the protesters to a police station, said Niklas Hartmann of European Youth for Action, an environmentalist group.
Police officers confirmed the detentions during what they called an unauthorized protest.
The detained included at least two American citizens and several German and French ones, along with other European nationals, Hartmann said by telephone from Sinop. The group has been camping near Sinop since Aug. 9.