On 21 March 1980, Tabatabaei met Foreign Minister Hans-Dietrich Genscher in Bonn, to discuss a possible ending of the hostage crisis in Tehran. The conversation remained without concrete results. Tabatabaei remained in touch with the German government and informed German authorities of the state of discussions in government and in parliament. This took place on 26 October 1980 in a telephone conversation between Tabatabaei and Foreign Minister Genscher, in which Tabatabaei informed about the debate in Parliament. On 16 and 18 September 1980 Tabatabaei met Foreign Minister Genscher and US Deputy Secretary of State Warren Christopher in Bonn to discuss the next steps in the hostage issue.