Two adults have been killed and two children wounded in a shooting outside a Las Vegas daycare centre.
Police said the domestic-related shooting occurred at about 6am local time outside the Kids Campus Learning Center.
A man and woman were found dead in the car park by responding officers, authorities said.
A three-year-old girl and four-year-old boy were taken to hospital with gunshot wounds.
Their injuries were not life-threatening, police spokeswoman Ann Cavaricci told reporters.
She said no one else was hurt and police are not looking for any suspects.
The daycare centre was closed for the day.