 The "piragua" longboat used to cross the San Pedro River was also transported to the lake to be used in the attack on the Itza capital.On 10 March a number of Itza and Yalain emissaries arrived at Chʼichʼ to negotiate with Ursúa.Kan Ekʼ then sent a canoe with a white flag raised bearing emissaries, who offered peaceful surrender.