Axel Steier, the founder of the sea rescue Mission Lifeline NGO, made the disturbing remarks in a social media post on Thursday. He proposed that such a drastic measure was necessary for the sake of humanity.

"In the country of the perpetrators, it should not be taboo to ban the AfD and imprison the leadership, even if this deprives 20-40 percent of German voters of their opinion," Steier posted on X, formerly known as Twitter.

"The persecution of Nazis is still a service to all of humanity," he added.