Last Sunday, Germany’s Christian Democratic Union passed a resolution to support Chancellor Angela Merkel’s position on migration, in conflict with Horst Seehofer, the leader of their Bavarian sister party the Christian Social Union.

Horst has offered to resign his position as interior minister, according to reports within the CSU, as the BBC said the inside sources claim he and Chancellor Merkel had an ineffectual conversation regarding the matter on Saturday.

Seehofer threatened to turn away asylum seekers last week, unless Chancellor Merkel reached a solution with European Union partners.