A Florida teenager's arm was bitten off in an alligator attack.

Florida Fish and Wildlife Conservation Commission spokesman Jorge Pino said the teen's arm was still inside the 11-foot alligator when it was hunted down and killed Monday evening.

WBBH-TV said 17-year-old Kaleb Langdale was rushed to a Fort Myers hospital, but his arm couldn't be reattached.

Langdale was swimming in the Caloosahatchee River near Moore Haven when the attack occurred.

Matt Baker said the gator swam straight at Langdale, bit the teen's arm and pulled him under water.

Another friend suggested Pino offered his arm to the gator to save his life.

"He's been around alligators all his life, He's smart enough.  He knows if he offers him his arm, he won't take his torso. He was smart, he took the risk," the friend said.

Gary Beck, who witnessed the attack, said Langdale popped out of the water, screaming "my arm is gone."

Officials say it's alligator mating season and attacks are not uncommon.