These efforts proved unsuccessful. In late 1759, some Cherokee leaders went to Charleston to try to negotiate with South Carolina authorities for peace. The colonial governor, William Henry Lyttelton, seized the delegates as hostages until the Cherokee surrendered those men responsible for killing white settlers. Having raised an expeditionary force of 1,700 men, Lyttelton set out for Fort Prince George, with the hostages in tow, and arrived on December 9, 1759. Attakullakulla was forced to sign a treaty agreeing that the Cherokee would deliver suspected "murderers" in exchange for the nearly two dozen hostages confined at Fort Prince George.