As the overturned boat floats down towards a dam people are screaming that there are people onboard.
In Gangwon-do Province, three boats capsized Thursday morning, leaving at least one person dead and five missing.
Two others have been rescued as of 5 PM.
At around 11:30 AM, 500 meters upstream from Uiam Dam, a police boat started to sink after being caught on a wire while its crew were doing maintanence work on a man-made island.
People reported to be maintenance workers from the dam and another man went to the rescue, taking two other boats, but all three boats ended up sinking.
One person was saved as the boats went down and another was rescued later, but one person's body was found 20 kilometers down river.
A search began with around 800 personnel and seven helicopters.
As of 6:30 P.M. they paused due to the sun setting but, even during the day, endured a tough time conducting the search.
Rain has stopped in the area, but the overspill from the dam is causing the river to flow much faster than usual.
Plus, the rain has made the water murky.
In response, Prime Minister Chung Se-kyun ordered all efforts to be made to rescue the missing people, but he asked the rescue team to be safe as well.
Kim Do-yeon, Arirang News