Paramedics and Renfrew County OPP were dispatched to the crash scene on Calabogie Road near Fraser Road around 2:30 p.m. Tuesday.
Paramedics assessed four people and called in a helicopter to transport the critically injured child to hospital.
The names and ages of the patients were not released.
According to Renfrew County Paramedics, three patients were treated at the scene, and two were taken to local hospitals in serious condition.
Police asked motorists to avoid the area for several hours until the scene was cleared shortly before 5 p.m.
The collision remains under investigation.
Ottawa police, meanwhile, reported a relatively light volume of overnight calls on city streets on New Year’s Eve.
A mess of winter weather that arrived overnight in the form of freezing rain and snow contributed to several collisions on Highway 417 through the city.
OPP alerted motorists to “multiple collisions” on the highway around 10 p.m. New Year’s Eve, and warned to “expect delays (due to) poor weather conditions.”
No data was immediately available on the number of incidents, though paramedics said none was considered serious.
Police in outlying areas were kept busy over the holiday season with collisions related to weather, impairment and wild animals.
Lanark County OPP reported 37 collisions in the week between Christmas and New Year’s Eve, including 15 involving vehicles striking deer.
A number of others were single vehicles in the ditch, with one resulting in drunk driving charges.
Stormont, Dundas & Glengarry OPP, meanwhile, charged a 34-year-old Montreal man with driving while impaired and causing bodily harm after he was stopped in South Glengarry Township driving erratically around 3:30 a.m. Friday.
That same morning police stopped a 58-year-old driver from Oakville travelling 154 km/h along Highway 401.
And on New Year’s Eve, police charged a 50-year-old man from Guatemala after he was stopped going 174 km/h on the 401 through South Dundas around 7 a.m.
Both drivers were charged with stunt driving under the Highway Traffic Act, their vehicles were impounded on the spot and their driver’s permits seized for seven days.
Source: Ottawa Sun