The anti-immigrant Alternative for Germany (AfD) accused Chancellor Angela Merkel's Bavarian allies on Tuesday of copying its tough line on dealing with migrants, as the parties vie for votes before elections in the southern state in October.
Merkel's Christian Democrats and their Bavarian sister party, the Christian Social Union (CSU), are embroiled in their own dispute over immigration that has threatened to break apart her coalition government.
CSU leader Horst Seehofer, who is also interior minister, has drawn up a plan under which Germany would turn away migrants who have already registered in other EU states. Merkel, however, opposes any unilateral move to reverse her 2015 open-door policy and undermine her authority.
The AfD, which is expected to poach votes from the CSU in October, accused Seehofer of electioneering.