Four people were reportedly injured in a three-vehicle collision this afternoon on a stretch of Route 228 known as “Ball's Bend.”

The accident about 1:30 p.m. involved an eastbound SUV and two westbound passenger cars, according to authorities on the scene.

One of the injured persons was flown to a hospital by medical helicopter.

The accident closed a portion of the road in both directions.

Three volunteer fire companies responded to the scene along with two ambulance services and Middlesex Township police.