The surveillance footage shows the reptile swimming in a direct path toward Serge’s dog before it rises out of the water and scampers up the embankment in pursuit of the animal.
The elderly woman was taken to the ground with the alligator then biting her feet, and then she was dragged into the water. While the woman's body was recovered from the retention pond, the dog survived.
FLORIDA GATOR RESPONSIBLE FOR KILLING ELDERLY WOMAN ATTEMPTED TO ATTACK DOG, THEN HER FOOT
In surveillance footage obtained by "Inside Edition," the alligator could be seen approaching Gloria Serge before the attack Monday in Fort Pierce, Florida. (Inside Edition/Fox News)
"Please hurry!... It’s a huge gator. It’s huge, I don’t have anything to give to her," a neighbor is heard saying in a frantic 911 call released by Fort Pierce Police.
"It’s too late. Oh my God," the woman is later heard saying.
4-FOOT ALLIGATOR RESCUED FROM NEW YORK CITY LAKE
An alligator in Florida that's responsible for killing an elderly woman first attempted to attack her dog, according to a state agency. (St. Lucie County Sheriff’s Office/Local News X/TMX)
"Did the gator pull her under?" the dispatcher asks.
"Yes," the neighbor screams.
"Alright you don’t see any of her body, nothing sticking out?" the dispatcher says.
"Nothing, she’s gone," the woman replies.
Gloria Serge, 85, died Monday after being attacked by an alligator in Fort Pierce, Florida. (St. Lucie County Sheriff’s Office/Local News X/TMX)
The alligator, which is reported to weigh between 600 and 700 pounds, was trapped and killed by a nuisance gator trapper.
"Our thoughts and deepest sympathies are with the family and friends of the victim," the Florida Fish and Wildlife Conservation Commission said in a statement. "Serious injuries caused by alligators are rare in Florida."
Fox News’ Adam Sabes contributed to this report.