Paris, France (CNN) -- Six suspected members of a Kurdish militant group were seized Tuesday in southern France, government authorities said.
The arrests -- made in the Marseilles region at the request of a Parisian anti-terrorism judge -- include one person who is "an important member at the European level" of the group -- the Kurdistan Workers' Party, also known as the PKK.
Officers from the Central Directorate of Internal Intelligence and Marseilles police arrested the six as part of an investigation into PKK financing.
They were put in custody in Marseilles and can be kept there for four days. Some are also suspected of throwing Molotov cocktails, said a source close to the investigation.
The PKK is a separatist Kurdish group that has been fighting security forces in southeastern Turkey for years.