Germany's right-wing, AfD party leader stated that it intended to put a stop to "an invasion of foreigners" into the country.
AfD co-founder Alexander Gauland addressed the concern after winning its first parliamentary seats.
"We want a different policy," Gauland said. "One million people, foreigners, being brought into this country are taking away a piece of this country and we as AfD don't want that," he said in a news conference on Monday.
Gauland said the AfD had been elected "to uncompromisingly address" immigration issues.
"We say I don't want to lose Germany to an invasion of foreigners from a different culture. Very simple.
"I'm German," Gauland said. "And I went from Germany to Germany. It is quite different when someone comes from Eritrea or Sudan," he said referring to fleeing the German Democratic Republic at the age of 18, then later seeking asylum in Germany.
The German Chancellor Angela Merkel was re-elected for a fourth term, but with some of the worst figures in seven decades. The AfD campaign piggybacked on the backlash created by Merkel's decision to open up Germany's borders to migrants and refugees in 2015.
The AfD party's success has shocked Germany's political establishment.
Merkel said that she would listen to the "concerns, worries and anxieties" of voters of the Alternative for Germany (AfD) in order to win them back.
She also said her government would have to deal with economic and security issues as well as addressing the root causes of migration – one of the main reasons behind the AfD's result. "Today we can say that we now have a mandate to assume responsibility and we're going to assume this responsibility calmly, talking with our partners of course."