German police arrest 4 they say were plotting to attack Islamic targets; seize explosives

The photo taken from the Facebook page of "Oldschool Society" on Wednesday, May 6, 2015 shows the logo of the group. German authorities conducted raids across the country on Wednesday, seizing explosives and arresting four people accused of founding a right-wing extremist group to attack mosques and housing for asylum seekers. (OSS via AP) (The Associated Press)

Police carry seized items from a house in Augsburg, southern Germany, Wednesday, May 6, 2015. German authorities conducted raids across the country, seizing explosives and arresting four people accused of founding a right-wing extremist group to attack mosques and housing for asylum seekers. (Karl-Josef Hildenbrand/dpa via AP) (The Associated Press)

A policeman carries evidence from a house in Augsburg, southern Germany, Wednesday, May 6, 2015. German authorities conducted raids across the country, seizing explosives and arresting four people accused of founding a right-wing extremist group to attack mosques and housing for asylum seekers. (Karl-Josef Hildenbrand/dpa via AP) (The Associated Press)

Germany federal prosecutors say authorities have conducted raids across the country, arresting four people accused of founding a right-wing extremist group to attack mosques and housing for asylum seekers.

Prosecutors said in a statement Wednesday that a SWAT team arrested three men and a woman from the group and that some 250 investigators searched homes in Saxony and four other states.

Prosecutors allege the "Old School Society" group was planning to attack asylum-seeker housing, mosques and well-known members of the Islamic-extremist Salafist scene in Germany.

The four arrested, identified only as Andreas H., Markus W., Denise Vanessa G. and Olaf O., are accused of having founded the group and having procured explosives.

Prosecutors say they are still trying to determine whether the group had concrete attack plans.