A collision between a Via Rail train and a double-decker bus in south Ottawa has caused multiple deaths, firefighters say.

The OC Transpo bus was travelling north on the Transitway, and Train 51 en route to Toronto was heading west when the collision occurred.

Map of Via Rail train vs. bus crash
A Via Rail train struck an OC Transpo bus on the Transitway in south Ottawa Wednesday morning. (Google Maps)

Firefighters say the crash happened at 8:48 a.m. ET near the intersection of Woodroffe Avenue and Fallowfield Road.

The front end of the bus suffered significant damage, firefighters added.

All of Ottawa's first responders are on their way to the crash, CBC News has learned. The Transportation Safety Board is also heading to the crash site, according to its Twitter account.

http://www.cbc.ca/news/canada/ottawa/via-train-ottawa-bus-collision-causes-multiple-deaths-1.1858868