Necropsy: Bladder stone found in Tulsa Zoo elephant - KSWO, Lawton, OK- Wichita Falls, TX: News, Weather, Sports. ABC, 24/7, Telemundo -

Necropsy: Bladder stone found in Tulsa Zoo elephant

Photo by Jessica Scallan, Tulsa Zoo Photo by Jessica Scallan, Tulsa Zoo

TULSA, Okla. (AP) - The Tulsa Zoo says a necropsy on one of its elephants indicates a nearly 10-pound bladder stone found in the animal led to her illness.

The zoo released the findings for 43-year-old Asian elephant Tova on Monday.

The animal began showing signs of discomfort on Nov. 9, and the zoo says the necropsy suggested the bladder stone caused Tova to stop eating and drinking.

The animal had just arrived at the Tulsa Zoo on Sept. 28 from the Ringling Bros. and Barnum & Bailey Center for Elephant Conservation in Florida.

The zoo says staffers worked around the clock to identify the source of the elephant's symptoms but the animal's health kept declining.

The zoo says it euthanized Tova on Sunday "to end her suffering."

Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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