A high-level internal meeting on the future of General Motors' (GM) German unit, Adam Opel AG, is taking place in Berlin, a government spokesman said Thursday.

"A temporary nationalization of Opel won't be under discussion at the meeting," the spokesman said.

He declined to elaborate on details of the meeting, except to note that it will facilitate the exchange of information and is taking place with preconditions.

-By Beate Preuschoff, Dow Jones Newswires, +49 (0)30 - 2888 4122, beate.preuschoff@dowjones.com