According to media reports, the crash happened at Coquihalla Highway around 30 kilometers (18.6 miles) north of the city of Hope at around 08:00 p.m. local time on Sunday (01:00 GMT on Monday).
"Updating on #Coquihalla incident involving 2 transport trucks, 2 buses and 2 vehicles: 7 patients have been taken to hospital in serious condition. Roughly 70, uninjured, taken by bus with paramedics on board to a warming centre. Paramedics on scene for 1 or more other patients," the Emergency Health Services wrote on Twitter.
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Local Hope Standard newspaper reported, citing EHS, that the number of those injured in the accident stands at around 40.
According to the CTV news outlet, citing Amy Robertson, a spokeswoman of the provincial Emergency Health Services, of 22 ground and air ambulances have been dispatched to the scene of the accident.
Moreover, the highway has reportedly been closed due to the crash.