BERLIN — The leaders of a far-right faction inside Germany’s right-wing populist opposition have asked the group’s members to “cease their activities,” an apparent surrender that analysts cautioned was more likely to be a tactical move in the troubled party’s internal power struggles.

The party, Alternative for Germany, currently has the largest opposition grouping in Germany’s federal Parliament, but the country’s domestic intelligence service announced this month that it was monitoring an activist group within the organization — Der Flügel, or “The Wing” — as potential far-right extremists.

National leaders of the party then voted to demand that The Wing dissolve. But its members have not been asked to leave the party, and its leaders, Björn Höcke and Andreas Kalbitz, remain in senior positions in two of the party’s state chapters.

“In principle, it is not possible to dissolve what does not formally exist,” Mr. Höcke and Mr. Kalbitz wrote in a Facebook post announcing the dissolution on Monday evening.