BERLIN, May 28 (Reuters) - German Economy Minister Karl-Theodor zu Guttenberg said on Thursday there was still a risk the Opel unit of struggling U.S. carmaker General Motors would not to be granted state guarantees.
Guttenberg said Germany would continue to negotiate hard with U.S. authorities on finding a sustainable solution for the European unit of the U.S. carmaker.
(Reporting by Matthias Sobolewski)