Two children have been treated for minor injuries after a school bus rolled over in Conestogo.

Regional Police were called to the single-vehicle incident around 9 a.m. on Tuesday in the area of New Jerusalem Road and Northfield Drive East.

The school bus was reportedly transporting 24 students to school when it rolled over into a ditch.

"He went a little bit into the ditch and then he was trying to turn away," said student Ashley Zalac, who was on the bus. "But we just feel in the ditch.

"It was on its side and the windows were facing the ground. Everyone was just on the windows. They could have broken and hurt someone."

Sharp Bus Lines confirms that it was one of their vehicles involved in the incident. They say students had to use the back door emergency exit.

"The safety and well-being of our students and drivers is our top priority at all times," said Sharp in a statement. "Thankfully, everyone involved in this morning's incident is safe."

Waterloo Region District School Board confirms Conestogo Public School students on board of the bus ranged in age from kindergarten to grade eight.

"Student transportation services of Waterloo Region will be looking into this incident and ensuring that proper protocols are in place," said Alana Russell of WRDSB.

They report that two children had bumps and bruises and were brought to school.

"It was scary because I didn't know who got hurt," said Zalac.

Students were brought to school on a different bus with their principal and a traumatic response team, according to the board.

WRDSB says they contacted families to let them know what happened and that all the students are safe.

"We are very grateful our students used good judgement," said Russell. "They acted appropriately in a very stressful situation."

The investigation into the incident is ongoing.

Anyone who may have witnessed the rollover is being asked to contact police.