An Australian teenager accepted a dare to jump into a crocodile-infested river - and got attacked almost immediately, authorities said.

Lee de Paauw, 18, was recovering Monday from serious wounds to his arm. Authorities also recovered the body of another man who also may have been attacked by a crocodile in nearby waters.

The teenager was at a hostel in the northern Queensland town of Innisfail early Sunday when he bragged he could swim in the river, which is known for its aggressive saltwater crocodiles, said Sophie Paterson, a British backpacker who was at the hostel.

She and several others egged him on, though none of them thought he’d actually get in the water, Paterson said.

But get in the water he did. Seconds later, a crocodile latched onto him.

“It all happened very fast. Pretty much as soon as he jumped in, there was splashing and screaming,” Paterson told Queensland’s Courier-Mail newspaper. “There was blood everywhere and he just wouldn’t stop screaming.”

De Paauw managed to pull himself out of the water. Queensland paramedic Neil Noble said the teen suffered extensive injuries to his arm, and was lucky to escape from the crocodile before the animal drowned him.

Meanwhile, Queensland authorities on Monday recovered a body believed to be that of a man who vanished on Saturday while spearfishing alone in waters just north of Innisfail. The 35-year-old man’s boat was found anchored off Palmer Point, about 30 miles north of Innisfail, on Saturday evening, with his spear gun floating in the water nearby.