28 November 2018, 11:14 GMT
Earlier on Saturday, the Dutch police said that four individuals had been detained in Rotterdam on suspicion of involvement in terrorist activities.
According to Germany's Zeit newspaper, the 26-year-old Syrian national was detained at an apartment in Mainz, with the flat having been searched by the police. The German police worked in cooperation with the Dutch colleagues, the news outlet added.
READ MORE: Syrian Refugee Gets Six Years in Prison for Planning Car Bomb Attack in Germany
The detainee is due to appear before court on Sunday, with the issue of his extradition to the Netherlands expected to be considered.
