Provincial Police in Perth County are investigating a serious crash north-east of Listowel.

Police say a vehicle struck a hydro pole on Perth Road 152 shortly after 2 p.m.

Ornge air ambulance says they transported one patient to London Victoria Hospital with critical injuries. They say two people were in the vehicle; an 80-year-old man and a 12-year-old boy, but it’s not clear which one was airlifted.

Perth Road 152 is closed between Line 88 and Line 89.

Drivers are being asked to avoid the area.