Police say a 20-year-old woman is dead after a crash in Niagara Falls, Ont., that they say involved alcohol.

Niagara Regional Police say a vehicle lost control, left the roadway, struck a number of small trees and landed upside-down in a ditch at around 2 a.m.

They say a female passenger was pronounced dead at the scene.

The driver and two other passengers were taken to hospital with minor injuries.

Police say a 22-year-old Welland man has been charged with impaired driving causing death.