Police say a 17-year-old boy with a loaded shotgun boarded a plane in Australia before being restrained by a pilot and two passengers.

Authorities did not identify any suspects or motive for the Sunday evening attack at the home of a Hmong family. All the shooting occurred outside, and none of the women and children inside were harmed. Police were investigating whether the shooting was connected to a recent “disturbance” involving some of the people at the party, Hall said. It was the third mass shooting in four days in California. Concepcion Soto, who has lived next door to the home where the shooting occurred for 12 years, said the family there was always friendly.