Halifax Regional Police said they charged an 18-year-old man with dangerous and impaired driving on Saturday.
At 4:10 p.m., police said they responded to multiple reports of a red Mazda sedan travelling southbound on the wrong side of Highw111 ay near exit 7 in Dartmouth.
“A few minutes later callers reported the red Mazda sedan hit head-on with a blue Hyundai sedan,” the police said.
According to authorities, the driver of the red Mazda attempted to flee on foot but was stopped by witnesses.
The occupants of the Hyundai, a 26-year-old man and a 24-year-old woman, sustained serious life-threatening injuries and were transported to the hospital.
Police said the investigation is ongoing.