TORONTO — Operations at Toronto’s Pearson International Airport had largely returned to normal Monday morning after a **** the night before triggered an ********** and major flight disruptions.

The airport said on its Twitter feed that both Terminal 1 and Terminal 3 were operating normally, but those travelling to the U.S. from Terminal 1 – where the **** started – could see some delays.

Travellers were advised to check their flight status today before heading to the airport.

All U.S.-bound flights from Terminal 1 were cancelled Sunday night after the **** broke out near a security checkpoint around 6:30 p.m.

The **** was quickly extinguished, although there was no immediate word on how it started.

Dozens of inbound flights were also ******** on the tarmac for hours as crews worked to make sure the airport terminal was safe.

Photos posted on social media Sunday, as well as television footage, showed thick ***** in parts of the airport and frustrated passengers crowding the terminal’s main concourse.

********** said one woman was taken to hospital in stable condition, while another was treated at the scene and released.

****** said no major ******** were reported.