Alice Weidel, co-lead candidate of the right-wing, populist AfD | Sean Gallup/Getty Images German far-right leader under fire over leaked email Alice Weidel called for ‘genetic unity’ to save Germany from ‘dissolution,’ according to reports in German media.

Alice Weidel, widely considered the liberal voice of the far-right Alternative for Germany party, came under fire Sunday when a leaked email revealed strong anti-immigration views more in line with the party's fringe.

In the email, written to an acquaintance in 2013 and obtained by die Welt, Weidel allegedly described immigrants as "aliens" and "non-people." She also called for the preservation of "genetic unity" and warns against the "self-defeated dissolution of our culture," die Welt wrote.

Weidel's lawyer denied she was the author of the email, saying: "This text was not written by our client. It would be false and unlawful to publicly claim or suggest that she wrote it."

According to die Welt's report, Weidel argued that the federal government, and above all Chancellor Angela Merkel, should be held to account for the decline of society and accused the judiciary of corruption.

"These pigs are nothing more than marionettes of the victory of World War II,” she allegedly wrote.

During a televised political debate on Tuesday, Weidel was asked to distance herself from the “radical” views of her colleague Björn Höcke, often the main speaker at nationalist rallies in Germany. In response, Weidel walked out of the studio, Die Welt reported.

Recent polling data show that around 9 percent of voters back the AfD party ahead of parliamentary elections on September 24.