A motorcyclist was critically injured in a collision with a vehicle around 4:49 a.m. Tuesday, Oct. 13, at St. Rose Parkway and Spencer Street in the south Las Vegas Valley, police said. The rider was taken to a hospital. The Las Vegas Metropolitan Police Department’s Fatal Detail was investigating at the scene. Henderson police also responded and assisted because the crash site straddles the Henderson city limits. Authorities had not released further details about the collision.