An Oregon woman has hit out against United Airlines, in the wake of the death of her Golden Retriever.

Kathleen Considine wrote a Facebook post concerning her seven-year-old dog Jacob - and the way he was allegedly treated.

She says her dog was unresponsive after finishing his trip from Detroit, Michigan, to Portland, Oregon.

Considine, whose Facebook profile says she lives in Bend, wrote that her pet was taken to an emergency vet and 'he was pronounced dead after 8 min of CPR'.

She alleged the airline has assumed 'zero responsibility' for Jacob's death.

An Oregon woman has hit out against United Airlines, in the wake of the death of her Golden Retriever. Katherine Considine is pictured with her beloved Jacob

Considine wrote a Facebook post concerning her seven-year-old dog Jacob - and the way he was allegedly treated

Considine claimed in the post: 'Jacob was supposed to fly from Detroit to Portland with a 1 hour layover in Chicago.

'At 80 pounds, Jacob needed a giant crate for his journey and there was question as to whether or not it would fit on the plane.

'The airline agent in Detroit confirmed Jacob would fit on his first and second flight, no question.'

She said her dog had earlier undergone a physical and 'was cleared for airline travel with no previous health concerns'.

Considine wrote: 'When Jacob landed in Chicago, it was found that the airline agent LIED and he did not fit on the plane to Portland.

'He was then sent to a kennel over night, 20 HOURS, until the next flight out he could fit on.

'The airline DID NOT ALLOW my mother to send food with Jacob, due to the intended short duration of his journey, even though it is mandated that the crates have a food bowl and their website states they may have a zip lock bag less than 1 pound of food attached to the top of their crate.

Considine, whose profile says she lives in Bend, wrote that her pet was taken to an emergency vet and 'he was pronounced dead after 8 min of CPR'

'When Jacob finally arrived in Portland, he was disoriented and non-responsive. The United agent said the airline may have given him medication, but he didn't know.

'The airline DOES NOT HAVE THE RIGHT to give medication, especially without telling us what, when, or why.

'After his three hour journey to central Oregon, Jacob was still non-responsive, and getting worse. My very best friend who I was expecting to trample me with kisses barely even acknowledged my existence.'

According to Considine, 'After rushing Jacob to the emergency vet when his breathing became scarce, he was pronounced dead after 8 min of CPR.

'His stomach flipped due to the stress of his journey that was 20 hours longer than expected, and suffocated his organs.'

She claimed: 'United Airlines "PetSafe" program is cruel. They treat animals like baggage. They did not care if Jacob had food or water or any time out of his cage.

'They are incredibly rude and have shown no sympathy for my dog's death. I would have received the same responses if they were to have broken my guitar in baggage.'

Considine claimed: 'United Airlines "PetSafe" program is cruel. They treat animals like baggage. They did not care if Jacob had food or water or any time out of his cage'

Considine's Facebook post has already been shared more than 17,000 times on the social media platform.

United Airlines said in a statement to DailyMail.com on Saturday evening: 'We were saddened to hear of Jacob's passing after we returned him to the care of his owner.

'Our PetSafe team is committed to the safety and comfort of all the pets that travel with us.

'We worked to ensure Jacob's comfort throughout his entire journey and he showed no signs of distress nor behave in a way that would suggest he was unwell while in our care.

'Though we understand little can ease the grief that accompanies the loss of a pet, we've been in touch with Ms. Considine to offer our condolences and discuss this matter further.'

Considine's Facebook post has already been shared more than 17,000 times on the social media platform