Phoenix police said the people involved in the Christmas night shooting at Sky Harbor International Airport were all familiar with each other.

Several police officers and other first responders were dispatched to reports of gunfire inside Terminal 4 at Sky Harbor Airport on Christmas night, according to officials with the Phoenix airport.

Three people were shot and a fourth person stabbed as a fight turned violent inside Phoenix Sky Harbor's Terminal ... and another person in a Terminal 4 parking garage with "at least one stab ...

Phoenix police said the people involved in the Christmas night shooting at Sky Harbor International Airport were all familiar ...