Dallas County is helping the city of Addison set up a family assistance center for people affected by the crash, Judge Clay Jenkins said.
“It’s a very sad day for Dallas County,” he said. “My prayers are with the families we’re notifying about this tragedy.”
The mayor of St. Petersburg, Rick Kriseman, also expressed his condolences.
“We are waiting on local officials in … [Texas] to release victim info,” he wrote on Facebook. “My thoughts are with the families of the deceased.”
David Snell, who said he was getting ready to fly from the airport, told KDFW-TV (Channel 4) he’d watched as the plane took off with what appeared to be reduced power.
“The plane started to veer to the left, and you could tell it couldn’t climb,” he said, adding that he could tell the plane was going to crash.
“That was really a horrific thing to see because somebody’s life, lives, family’s lives were forever changed. It’s awful,” Snell said.
Staff writers María Méndez and Sara Coello contributed to this report.