A man fell or jumped from an upper level of the Smoothie King Center during the hard rock band Tool’s sold-out concert on Sunday night. The extent of his injuries is unknown.

“We can confirm that a patron fell,” said Sabrina Trahan, the arena’s event marketing and media coordinator, in an emailed statement. “An investigation is ongoing.”

Arena officials did not respond to requests for additional information.

A capacity crowd of nearly 14,000 filled the Smoothie King Center as Tool, concluding a monthlong tour, topped a bill that included Primus and 3Teeth.

The incident occurred toward the end of the concert, during Tool’s encore.

Freelance journalist Wesley Hodges was watching the encore at the back of the arena, toward the top of the lower-level bleacher seats. He was just below the edge of the suite-level balcony above him. The man landed several seats to the left of Hodges, in the same row.

“It was scary,” Hodges said. “I caught it out of the corner of my eye. I saw a body coming down and heard a really loud crash. I saw him lying on the ground. There was chaos after that. People were screaming.”

He was unsure if the man fell or jumped, whether he struck anyone else and whether he landed on empty seats or the floor. He also didn’t know if the man came from the suite-level balcony or the higher, 300-level balcony. Based on the configuration of the balconies, he likely came from the suite-level.

The man appeared to be moving as he lay on the cement floor between two rows of seats, Hodges said. Police and arena security personnel arrived almost immediately, he said: “They were on top of it very quickly.”

Hodges did not stick around to see what happened next. “I walked out. It was hard to focus on the concert after that.”

Patrons elsewhere in the arena, as well as members of the band, were unaware of the incident. The concert concluded as scheduled shortly after 11 p.m.