Family sues after 'emotional support' pitbull attack

The family of a 5-year-old girl attacked by the pitbull is suing Alaska Airlines, Portland International Airport and the dog's owner for $1 million.
1:48 | 03/01/19

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Transcript for Family sues after 'emotional support' pitbull attack
We turn to a vicious attack on a 5-year-old girl by an emotional support pit bull at the Portland international airport. ABC's gio Benitez is here with the latest on this one. Good morning. Reporter: Good morning. The family was at the gate waiting area boarding a flight when the little girl started petting the dog but the dog attacked. Reporter: The parents of this 5-year-old girl outraged after a so-called emotional support pit bull attacked the child at an airport. The family suing Alaska airlines, Portland's airport, and the dog's owner for $1 million. According to the lawsuit, the dog was not in a crate and is not a trained and registered service animal. In violation of Portland international airport's own rules. Delta has reported an explosive 84% increase in incidents involving unruly animals from 2016 to 2017 including this incident when a 50-pound emotional support dog bit a man on a plane. His face was covered in blood. Reporter: Airlines responding to these by rolling out new policies and restrictions. Southwest, united and delta allowing only cats and dogs. Other carriers requiring additional documentation, 48 hours in advance or proof that the animal is well behaved. Delta even banning all pit bulls and similar dogs and united ruling that only one emotional support animal is permitted per customer. We're just trying to put some structure an rules around it so somebody can't show up with just anything. Reporter: Alaska airlines says it is heartbroken by the incident and Portland a airport now requires emotional support animals to be kept in their carriers. That little girl has recovered from surgery but her family says she suffered permanent injury and emotional trauma. We hope she gets better. That was scary. Thanks very much. Coming up we have an ABC

This transcript has been automatically generated and may not be 100% accurate.

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