Months after he returned from Syria, a 24-year-old German suspected of joining ISIS militants was arrested on Saturday, German federal prosecutors said in a statement.
According to the statement, the suspect allegedly arrived in Syria in October 2013 and was a member of the group until he returned home in November,
German officials estimate around 550 of their citizens have made their way to Syria and Iraq to fight alongside ISIS, according to Agence France-Presse.