CHATTANOOGA, TN (WRCB) - The Delta Queen was evacuated Thursday afternoon, following a small fire.

The boat's assistant manager spotted smoke coming from the river side of the boat around 5 p.m.. He called 911 and ordered the evacuation of everyone on board.

Chattanooga firefighters used a thermal imaging camera to locate the fire inside what boat personnel called the "bumper rail".

Fire crews used river water pumped by the boat to get the fire out quickly.

Randy Ingram, who manages the riverboat along with his wife, told fire officials the damage to the riverboat is "negligible".

The Delta Queen employs 40-50 people. There were 100 patrons on board when the fire was discovered. No one was injured.

Bruce Garner with the Chattanooga Fire Department says initial reports show the fire may have started around the generator, but Battalion Chief Charles Patton says that does not appear to be the case. The cause of the fire is under investigation.