Police say they responded to reports of a man threatening passengers with a knife around 7:30 p.m. PT.
Officers tried to restrain the man using a stun gun, police said, but when that didn’t work, an officer shot him.
The man was transported to hospital for treatment. On Sunday evening, his condition was still unknown.
The IIO will be interviewing witnesses, speaking to officers involved and reviewing any evidence.
They will focus on whether or not the police officer involved in this shooting committed an offence.