Major airline delays 150 passengers overnight following serious in-flight threat

A disruptive passenger forced a Newark-bound United Airlines flight to make a swift U-turn back to Las Vegas late Saturday night, grounding the cross-country trip until Sunday morning. United Flight 1681 had just departed Harry Reid International Airport when the crew flagged a potential security concern in the cabin. The Boeing 737, carrying 150 passengers and six crew members, safely touched back down in Vegas at roughly 11:05 p.m. without any reported injuries, several news outlets reported.