RIPLEY, Ont. - The drivers of a school bus and a pickup truck have been taken to hospital after a collision in southwestern Ontario.

Police say no students were on the First Canada bus at the time of this morning's crash north of Ripley, Ont., about 130 kilometres northwest of Kitchener.

The bus ended up on its side, while the pickup was all but demolished.

The driver of the pickup was airlifted to hospital in London, Ont., with unknown injuries.

The female driver of the bus was also taken to hospital with undetermined injuries.

Investigators want to hear from witnesses.