UPDATE: Police say the boy was leaning on the window screen and talking to a friend outside when the screen popped out and the boy fell.
You can learn more about window safety devices by going to the Stop at 4 Window Safety campaign website.
A four-year-old boy fell out of a third floor window in a Northeast Portland apartment Wednesday night.
The boy hit his head on a planter and died at a hospital.
Police say it appears to be an accident, but homicide detectives and the Child Abuse Team are investigating.
Residents of Miraflores Apartments tell KATU News they circulated petitions in hopes management would add window locks, but they stopped when they were threatened with eviction.