PHOTOS: Toronto Pearson Airport on lockdown after shooting in Terminal 1 this morning

A man has died after being shot by Peel police at Toronto Pearson's Terminal 1 Thursday morning, the province's Special Investigations Unit (SIU) said.

Officers were at the airport shortly before 7 a.m. investigating a "man in distress" who was in an SUV at Terminal 1 departures, the SIU said in a news release Thursday. 

"Early information received indicates [the man] produced a firearm," the release said. Three officers discharged their weapons, the SIU said. The man, 30, was pronounced dead at the scene. 

No police officers were injured, the SIU said. The shooting "is an isolated incident and there are no known threats to public safety," Peel police said in a post on X, formerly Twitter. 

Peel paramedics responded to the scene around 6:56 a.m., a spokesperson confirmed. Danilo Simic told CBC News he had just dropped off a friend at the airport and was planning his route home to Hamilton when he heard 10 or more loud bangs. 

"Right away I thought, this can't be a car's loud exhaust. This is something different, something that I haven't heard before," he said. Simic said he ducked in his car, assuming the noises were gunshots. Everyone around him "came to a standstill," he said. Two police cruisers soon sped past him, he said.

As Simic drove away, he saw a man laying on the ground bleeding from his torso and his head. 

An officer was giving the man CPR, he said. Police were also holding back a woman from the scene, Simic said. Another witness, Jake Seymour, said he was outside on the airport's lower level when the shooting happened. He said he heard multiple shots, then went to the top floor to see if he could offer first aid. First responders were already there, he said in a direct message to CBC Toronto. 

Seymour said exits in the area remain blocked off. 

The scene that's taped off wasn't on the roadway where passengers immediately exit the airport, but rather the secondary roadway that's closer to the airport's parking garage, he said. 

Images from the scene show a heavy police presence with several Peel Regional Police vehicles parked outside the massive three-level terminal building that's the hub of Air Canada's operations and most major international flights. 

At least a dozen police cars en route to the departures area of Terminal 1were reportedly spotted.