Sophie the sea lion dies at the National Zoo

Sophie the sea lion, pictured left. (AP Photo/Gene J. Puskar)

(WJLA) - Sophie, a sea lion at the National Zoo, has died, according to zoo officials.

Sophie, 2, was found dead at the bottom of her pool Friday morning. Keepers at the zoo reported the sea lion's behavior was normal when they checked on her yesterday evening.

The sea lion's cause of death has yet to be determined, but officials said a necropsy will be performed later today. The results are expected to come back in the next few weeks.