Six Flags shares plunge after-hours following report of deadly roller coaster incident

What happened

Summary: CNBC reported Six Flags shares plunged after-hours following reports of a deadly roller coaster incident at its Georgia amusement park.
Key point: CNBC reported Six Flags shares plunged more than 10% in after-hours trading Monday after reports of a deadly roller coaster incident at its Georgia park.
Key point: A CNBC headline said Six Flags shares plunge after-hours following a report of a deadly roller coaster incident.
Qualification: Evidence is limited to a headline and feed snippet; no article body details are supplied.