A vehicle carrying five people went out of control on Route 3 North in Braintree on Monday evening, causing an accident that sent all five to the hospital and closed lanes on the highway.

Route 3 North was closed except for one lane near the scene of the crash at the Union Street exit as of 8 p.m. Monday. A Massachusetts State Police crime scene unit from Milton is on the scene, along with a reconstruction unit, to determine the cause of the crash, police spokesman David Procopio said in an email.

One of the five in the car was injured seriously, Procopio said. Two people were taken to South Shore Hospital and three to Boston Medical Center.