Chancellor Angela Merkel said Germany needs to make a "national effort" to ensure that migrants who have applied for asylum in the country unsuccessfully are returned to their home countries.
"We absolutely need a national effort to send back those who have been denied [asylum]," Merkel told the youth wing of her Christian Democrats at a conference on Saturday in the city of Paderborn.
Faced with falling support for her party ahead of a national election next year, the chancellor said deportations had to happen more quickly to show the electorate that the government is taking concerns over migration seriously.
Merkel was hailed by the international press following her decision to open Germany's borders last year to refugees and migrants stranded across Europe. The country took in almost 900,000 people in 2015.
But the rush led to bureaucratic backlogs and overwhelmed communities, with anti-foreigner sentiment on the rise in the country.