Lara claimed that flight attendants said the dog would be safe inside the compartment for three hours during the flight.
The incident, CBS reported, violates United's policy that instructs passengers to put pets in kennels that can fit underneath the seats in front of them.
"We are thoroughly investigating what occurred to prevent this from ever happening again", Schmerin added.
Outrage has been building on social media over a picture of a family's French bulldog puppy, dead in its carrier, after a United Airlines flight attendant forced them to put the bag holding the dog in an overhead bin. "They assured the safety of the family's pet so wearily, the mother agreed". "It was clearly a dog and while the customer was adamant about leaving it under the seat, the attendant pushed her to do so". "There was no movement as his family called his name".
"A stranger offered to hold her newborn while she sat on the floor, there in the airplane aisle. The flight attendant continued to ask the passenger to do it, and she eventually complied".More news: Tennessee Titans to sign former New England Patriots CB Malcolm Butler
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"I want to help this woman and her daughter". Last June, rapper SchoolBoy Q accused United of putting his pet dog on the wrong flight to the wrong city during a layover.
"At the end of the flight - the dog was found in the carrier".
Last August, Lulu, a King Charles spaniel, died in the cargo hold of a United Airlines jet. This poor family paid $125 for their pet to be murdered in front of them.
United's website states that pets "must be carried in an approved hard-sided or soft-sided kennel". Gremminger said she didn't see the woman check on the dog.
After the news broke, United issued a statement confirming the story and apologizing for the incident.
United transported 138,178 animals previous year, more than any other American airline according to the US Department of Transportation.
Of those 24 incidents, 18 took place on United Airlines.