Two school bus drivers are no longer behind the wheel after they were found to be operating their vehicles while under the influence of alcohol.

A Gatineau, Que., man is facing charges after police say he was caught operating a school van with four times the legal blood-alcohol limit.

Teachers at Saint-Paul Elementary School noticed there was something wrong with the driver on Monday afternoon and alerted police.

There were several children in the school van when Gatineau police arrived to the scene.

Police said the driver failed a breathalyzer test. The man's driver's licence was also invalid.

Stephane Larose, 47, was scheduled to make a court appearance on Tuesday.

Meantime, in Huron County, Ont., a number of onlookers alerted police to a bus that was swerving across lanes and into oncoming traffic on Monday afternoon.

Police stopped the bus, which had 10 elementary school children onboard at the time; upon speaking to the driver, officers noted he had been drinking alcohol.

Following a roadside test the driver, a 50-year-old from Listowel, Ont., has his driving privileges suspended for three days.

With a report from CTV Ottawa