NORTH GREENBUSH, NY (WENY) -- Police are investigating a crash that sent four people to the hospital including two state troopers.

It happened early Sunday morning just outside of Albany.

We're told around 4:00 a.m., police were called to the scene of a crash on Interstate 90. The left lane was closed, so the car involved in the accident could be removed by a tow truck.

Shortly after 5:00 a.m., 911 dispatch was flooded with calls reporting another accident in the same location. Police say a driver failed to change lanes and ended up hitting the patrol car and two state troopers. One of them was thrown about 70 feet into the median the other, thrown and trapped underneath the tow truck. One of the tow truck operators was also hit by the car.

Twenty-six-year-old Christoper Neumann, the man police say caused the crash, was charged with Vehicular Assault, Driving While Intoxicated, and a number of other violations.

All four people were taken to the hospital.

On Monday morning, police said both state troopers were in serious but stable condition.One in ICU, the other recently underwent emergency surgery.

Neumann was treated and released and is being held in Rensselaer County Jail with no bail.