DES MOINES, Iowa [KCCI-TV] — One person is in custody after they “entered the stage area during event activities” Thursday afternoon during the National Speech and Debate Tournament at the EMC Expo Center in Des Moines. According to a news release from the Des Moines Police Department, the male’s “behavior prompted safety concerns and the immediate area was evacuated.”

Authorities say it happened just before 3 p.m. and officers working the event took the person into custody. “No weapons were seen or have been recovered at this time,” according to DMPD. “No injuries have been reported at this time.”  The area was safely cleared and participants were allowed back into the events center before 4 p.m. and the schedule resumed at 5:15 p.m.

It’s the 100th anniversary of the National Speech and Debate Tournament. Organizers expected more than 10,000 people from schools across the United States and around the world to attend the five-day event, which opened Monday and ends Friday.

Shelby Young with the National Speech and Debate Association provided the following statement:

This afternoon, an unidentified attendee entered the stage during the Humorous Interpretation Finals, interrupting the round. The individual has been subdued and removed from the premises. There were no weapons involved, and no threats were made. The hall was evacuated and there are no reported injuries. The rest of the venue has been swept for any potential threats by members of law enforcement. We understand the concerns people have, and we want to assure everyone that this is an isolated incident.