AfD on Wednesday banned Krah from appearing at EU election campaign events, after Le Pen’s party announced the split.
After a crisis meeting with the AfD’s top brass, Krah said he will also leave the party’s federal steering committee.
Le Pen’s move could be a first step toward a realignment of far-right parties represented in the EU legislature. They are currently divided into two groups, hampering them from securing key posts in the bloc’s administration.
The European Conservatives and Reformists group, or ECR, includes the parties of Italian Prime Minister Giorgia Meloni and France’s Eric Zemmour, while Le Pen’s party and the AfD belong to Identity and Democracy, or ID.
The decision by RN to end ties with the AfD was first reported by newspaper Liberation. AfD spokesman Daniel Tapp declined to comment and referred to a party leadership meeting on Wednesday morning where the issue will be discussed.
The two parties were already at odds following a media report that AfD members attended a meeting where a remigration scheme was discussed that echoed policies of the Nazis. Talks between Le Pen and AfD co-leader Alice Weidel in Paris did not resolve the conflict.
“There isn’t a war between groups. There are ongoing discussions about how we can topple the majority at the European parliament,” Le Pen told Europe 1 on Wednesday.
Far-right parties can find common ground on issues including control of borders, “a desire to remain sovereign” and “defending veto rights of nations”, she said.
In a sign of possible movement, Le Pen attended a meeting in Madrid on Sunday with Spain’s Vox, which is part of the ECR.
The RN in recent years has sought to portray itself as a moderate party that prioritises the economy and people’s livelihoods.