More than 30 people attending a Tony Robbins event in Dallas have been treated for burns after the motivational speaker encouraged them to walk on hot coals, firefighters said.

Dallas Fire-Rescue spokesman Jason Evans said multiple units responded to the Kay Bailey Hutchison Convention Center to treat an unknown number of "burn victims" just after 11 p.m. Thursday.

A California couple burned during the Tony Robbins event took a more positive outlook to the incident Thursday night.

Several people suffered burns to their feet and lower extremities after trying to walk across hot coals at a seminar hosted by Robbins. According to his website, the event was part of a three-day series called "Unleash the Power Within" meant to "help you break through any limit and create the quality of life you desire."

A Dallas Area Rapid Transit bus was requested to help hold some of the 30 to 40 people being evaluated. The severity of their injuries was unclear, but Evans said only about five people chose to be hospitalized.

Robbins Research International, the marketing arm of his businesses, said in an email that there were "trained medical and event staff at the fire walk specifically to offer quick and easy remedies for any soreness."

The email went on to say, "someone not familiar with the fire walk observed the event and called 911 erroneously reporting hundreds of people requiring medical attention for severe burns. While we are grateful to the quick and robust response from Dallas emergency services, only 5 of 7,000 participants requested any examination beyond what was readily available on site."

More than 30 people attending a Tony Robbins event in Dallas have been treated for burns after the motivational speaker encouraged them to walk on hot coals, firefighters said.

The email calls the even a success and went on to say, "we are pleased to have completed another successful fire walk for 7,000 guests and look forward to the remainder of an outstanding weekend with them."

More than 20 people were treated for foot burns after a similar Robbins event in 2012 in San Jose, California.

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