Three suspected members of the Palestinian Islamist group Hamas will appear before a German federal judge on Friday, prosecutors said, a day after they and one other man in the Netherlands were detained.
Dutchman Nazih R was detained on the basis of a European arrest warrant issued by a judge in Rotterdam.
According to security sources, the men’s actions were not directly linked to the Hamas attacks on Israel on October 7.
Carrying out attacks outside Israel and the Palestinian Territories would be a change of strategy by Hamas.
Separately, two suspected members of the Lebanese Islamist group Hezbollah are to face a court hearing in Hamburg, also accused of membership in a foreign terrorist organization.
A spokesman for the court in Hamburg said that the judges had yet to decide whether to admit the charges.
Hezbollah is banned from operating in Germany. It denies Israel’s right to exist and uses terrorist methods to fight against the Jewish state.