On 24 August 2013, Lucke and 16 other party members were reported to have been attacked in Bremen by opponents who used pepper spray and pushed Lucke from the stage.
Pada tanggal 24 Agustus 2013, Lucke dan 16 anggota partai lain yang dilaporkan telah diserang di Bremen dengan lawan yang menggunakan semprotan merica dan mendorong Lucke dari panggung.