KARLSRUHE, Germany (Reuters) - A suspected accomplice in the case of a German army officer accused of planning to attack one or more politicians and incriminate a Syrian asylum seeker for the deed has been freed pending trial, the chief federal prosecutor said on Tuesday.

Mathias F., a 25-year-old German student detained on April 26, was released because authorities believed there was little chance of him trying to flee or cover his tracks.

Another suspected accomplice, army officer Maximilian T., was released on July 5 for lack of evidence.

Franco A., the main suspect, is still in custody. He is accused of planning to frame a Syrian asylum seeker for the attack in the service of a far-right, anti-immigrant ideology. The case has ignited a public debate about the extent of right-wing radicalism in the German military.