07/26/2015 19:36 EDT | Updated 07/26/2016 01:12 EDT

Three separate crashes along Coquihalla Highway send 13 to hospital

KAMLOOPS, B.C. — Thirteen people have been sent to hospital in three separate accidents along the Coquihalla Highway.

BC Ambulance Service responded to a trio of crashes within a two-hour period on Sunday, all of which took place a couple dozen kilometres south of Kamloops, B.C.

The first and most serious was a multiple-vehicle collision that happened shortly before 11 a.m., which sent eight people to hospital, including one in critical condition.

The second involved several vehicles and saw three people in stable condition brought to hospital.

A third incident put two people in hospital after a single-vehicle rollover shortly before 1 p.m.

BC Ambulance spokesman David Weir says the causes of the crashes have yet to be determined but that there was significant hail and rain in the area at the time.

The Canadian Press