Montreal police say a 23-year-old man was shot and injured in an apparent case of road rage in the city's northeast on Monday.

After a conflict erupted between two motorists — on Highway 40's service road in the borough of St. Leonard — one drove parallel to the other's moving vehicle and opened fire, according to Montreal police spokesperson Const. Caroline Chèvrefils.

The shooting occurred at about 1:40 p.m. ET, just before the eastbound exit for Langelier Boulevard. The suspect fled the scene.

Police say the victim, who was driving a delivery van, had at least one upper-body injury. Another motorist stopped to offer assistance, helping him get to a nearby police station, Radio-Canada has learned.

The victim was conscious when transported to Sacré-Coeur Hospital with non-life-threatening injuries, Chèvrefils said.

He was driving a van for Monsieur Livre-Tout, a delivery company based in St-Jean-sur-Richelieu, Que.

There is no description of a suspect at this time, but police will review traffic cameras and security cameras of nearby businesses as they investigate, Radio-Canada reports.

A section of Highway 40's service road was closed as police conducted an investigation, but it has since been re-opened.