Two days after a ferry sank in heavy seas in Indonesia's east, nearly 40 people were still missing, a rescue official said on Thursday, although estimates of the number of people on the ship have varied widely. The Indonesian navy has rescued more than 100 people since the ferry, traveling from Kupang on Indonesia's side of Timor island to nearby Rote island, ran into trouble on Tuesday night. "We have found another three people stranded on an island nearby. One died," search and rescue operation chief Colonel Agus Susilo told Reuters by telephone on Thursday. That would bring the number known to have survived to 115, and the known dead to two. Susilo said "around 37" people were missing, the estimates based on survivor reports on how many people they believed to have been aboard.