A National Transportation Safety Board investigator said both the runway lights and an automated weather-notification system at the destination airport were inoperable when the Cessna 550 plowed into the Murphy Canyon neighborhood at about 3:45 a.

At least three people were killed when a private jet crashed into a San Diego neighborhood Thursday morning, adding to the long list of aviation disasters this year.

About 100 people were displaced from their homes, officials said, and about 10 buildings were damaged.