Dad's heartbreaking last call as daughter dies in horror alligator attack in Florida

A 31-year-old died after an alligator bit off one of her arms at a state park near Orlando on Sunday (June 28), as her dad revealed their heartbreaking final phone call.

Brittany Clark was swimming in the Econlockhatchee River with friends last week when she was viciously attacked by an alligator lurking just three foot deep into the water.

The victim had been hiking with her boyfriend, Chance Allison, and her best friend, Jayden Hernandez, and the three had gone into the river to cool off, when just moments later their world was turned upside down.

During the attack, Clark’s boyfriend was still trying to get her arms away from the alligator’s mouth when he called 911 for help.

But in the emergency call obtained by NBC News, the friend can be heard saying: "OK, both her arms, both her arms, both her arms are off, like, basically.

"One of them is, like, very hanging on by a thread, and the other was off."

Clark's dad, who previously served in the US Navy, noted that the family are completely heartbroken.

The 31-year-old was fatally attacked while swimming with friends. (Facebook)

Speaking to the New York post, he said: "I received a call on Sunday from Brittany’s roommate Jayden and she was explaining as it was happening.

"They were trying to keep her alive and waiting for the authorities to show up."

Her roommate previously said the trio had joked about there being an alligator in the shallow water.

Writing in a Facebook post earlier this week, she said: "There were air bubbles within our little triangle we made with our bodies in the water and I commented on how it might be a sneaky gator and Chance, Brittany’s boyfriend, swam right over it to show nothing was there, and nothing was there.

Her dad revealed the details of the horrifying phone call. (Facebook)

"Britt literally commented on how she thought he was gonna act like he got attacked and we just laughed because he would never do that because he’s an amazing person.

"And just a few minutes later my best friend got attacked."

Clark died before rescue workers could get her to a hospital, officials reported.

Her boyfriend noted that the 31-year-old 'loved going out on the water every chance she could', but noted that never 'in a million years would we have seen this nightmare come about'.

This incident was the third reported alligator attack in the past seven days.