"They say that there was a point in which they were very close and probably what happened is that, you know, a big ship creating a big wave - they were approaching in a very strong manner and they lost balance," Asami said.
The account she offered differs from that provided by authorities on Sunday. They said that as the rescue ship approached late Saturday, migrants on the smaller boat moved to one side, hoping to be saved, and caused the vessel to capsize.
The conflicting accounts of the chaotic events highlight the challenges faced by commercial vessels that are often called upon to help in the escalating migrant boat crisis in the Mediterranean.