Berlin: German authorities said police arrested four suspected members of the Islamic State group alleged to be planning an attack on American military facilities.

Federal prosecutors said the suspects were arrested by tactical police units early on Wednesday, Berlin time, at various locations in the western state of North Rhine-Westphalia.

They identified the men as Azizjon B, Muhammadali G, Farhodshoh K and Sunatullokh K - all citizens of Tajikistan. The suspects' surnames weren't released for privacy reasons.

Police arrested four people suspected of planning a terrorist attack in Germany. Credit:Getty Images

The men's alleged leader, a 30-year-old Tajik man identified only as Ravsan B, has been in jail since March 2019 on unspecified charges.