AKIPRESS.COM - The search is on for the more than 190 people feared dead after a crowded tourist boat sank on an Indonesian lake earlier this week, APreported.

Indonesian authorities say the boat was five times over its passenger capacity and only 18 survivors were found within the hours of the sinking on Monday evening.

It's possible many of the victims were still inside the sunken ferry, said North Sumatra province police chief Paulus Waterpau.

The tourist boat, which was only equipped with 45 lifejackets, sank about 20 minutes into its trip when strong high waves caused the boat to take on water and then capsize.

"Many passengers without a life jacket jumped into the deep lake, but others drowned with the boat," survivor Juwita Sumbayak told the Associated Press. "I jumped, I cried with fear." She saw dozens of people in the water "but nobody can help."