07/20/2014 08:14 EDT | Updated 09/19/2014 05:59 EDT

2 people critically injured in head-on crash south of Stratford

Two people are in critical condition following a head-on collision in southwestern Ontario on Sunday.

Two Ornge air ambulances were dispatched to the crash scene and two people were then airlifted to hospital.

A spokesperson for Ornge told CBC News that seven patients were involved, most of whom are children.

The crash happened south of Stratford, Ont., at the intersection of Embro Road and Line 26, the spokesperson said.