BERLIN (AP) — Germany's highest court has thrown out complaints from the far-right Alternative for Germany party claiming Chancellor Angela Merkel's 2015 decision to allow in hundreds of thousands of migrants was a constitutional violation.

The party, known as AfD, argued that Merkel's decision not to refuse migrants' entry at Germany's borders violated parliament's right to participate and other principles.

But the Federal Constitutional Court said Tuesday that the three complaints didn't meet prerequisites for a constitutional hearing because the AfD "failed to sufficiently substantiate that the federal government's decisions on this matter violated or directly threatened its rights."

It also noted that while the AfD argued parliament should have been enlisted to draft a "migration management act," the party also stated its "unwillingness to participate in the introduction of a corresponding bill."