Four young men and a dog were rescued Thursday afternoon after their bass boat sank in Norris Lake near Hickory Star Marina.

Two of the young men were taken to a Knoxville hospital for observation after spending time in the 55-degree water, according to Matt Cameron, area spokesman for the Tennessee Wildlife Resources Agency.

No one suffered injuries. No charges were expected, according to Cameron.

The incident occurred shortly after 1 p.m.

TWRA and the Union County Sheriff's Office were alerted and responded.

The boaters, ages 17 and 18, were riding in an older model bass boat in the Loyston Sea section of Norris near Hickory Star Marina. They may have struck something in the water. The motor came off the boat.

The boat began to take on water. The young men tried to head toward a nearby island but the boat sank.

One of the young men and the dog had a flotation aid. The others did not.

"Fortunately, a nearby fisherman who was on the other side of the island heard their cries for help and was able to render aid by getting them into his boat," according to Cameron.

TWRA Officer Jason Lankford arrived and put them in his patrol boat.

Because two of the young boaters showed signs of hypothermia, they were taken to the hospital.