The Marriott Resort in Puerto Vallarta, Mexico. .

The 12-foot reptile attacked 18-year-old Kiana Hummel of Novato when she was swimming around midnight at the Marriott Puerto Vallarta Resort & Spa.

Hummel and a bystander who witnessed the attack told ABC7 that no one at the Marriot resort had warned them about the dangers at the beach, where another tourist was reportedly attacked by a crocodile in 2018.

Crocodile attacks on Mexico's Pacific coast are not uncommon. Last month two British twins, Melissa and Georgia Laurie, 28, were attacked by a crocodile 800 miles down the coast in Puerto Escondido