PITTSBURGH (KDKA) – Several people had to be treated at a concert at Stage AE Thursday night.

It was the second time emergency responders were called to the North Shore to treat people at a concert in the past two weeks.

Pittsburgh Emergency Medical Services Chief Mark Bocian says calls started coming in from 7:30 p.m. Thursday until after 11:30 p.m. for Stage AE where the “Parks and Devastation” Tour was performing.

Forty people were treated, 10 of them were taken to local hospitals.

It’s unclear what caused the people to become sickened, but at least one person was loaded into an ambulance via stretcher.

It was a sold out concert, which included acts like “A Day to Remember,” “Bring Me The Horizon” and “Emotionless In Flight.”

Four-thousand people packed the outside area for the sold-out concert.

Bocian said, “You have a large amount of people in a small area and then they start surfing and they do the mosh pit and that lends itself to injuries.”

Bocian says Stage AE tried to prevent this by hiring two ambulances, four paramedics and an EMS physician, but it didn’t work.

“Heat was definitely a factor,” said Ryan Howley who was at the concert. “Event staff was spraying the crowd with a hose and passing out cups of Water to try to keep people hydrated. The crowd was packed in tight and it tends to get rowdy at concerts like that. Lots of pushing and Shoving. Not mean spirited, but all part of the experience. I had to leave the crowd at one point because I knew if I didn’t get water That I was going to pass out.”

Calls to Stage AE were not returned. Bocian says he plans to meet with Stage AE Management to nail down a better plan with the venue.

Last month, 38 people were treated for heat exhaustion at the Austin Mahone concert. Eight people had to be taken to the hospital.

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