German Finance Minister Wolfgang Schaeuble takes part in a eurozone finance ministers meeting in Brussels, Belgium March 20, 2017. REUTERS/Yves Herman

BRUSSELS (Reuters) - The behavior of Turkish politicians campaigning for a constitutional change to expand the powers of President Tayyip Erdogan is so “unimaginable” that it defies comment, German Finance Minister Wolfgang Schaeuble said on Tuesday.

Schaeuble was speaking to reporters in Brussels after a meeting of European Union finance ministers.

His comment reflected growing frustration by German officials about repeated comments by Erdogan and other top Turkish officials comparing local bans on rallies in Germany to actions taken during the Nazi era.