A ferryboat carrying more than 100 passengers collided with a barge carrying fuel tanks and sank to the bottom of the Amazon River on Thursday, officials said. Twenty people were missing and feared dead.

The Almirante Monteiro capsized at dawn near the isolated Brazilian town of Itacoatiara in the jungle state of Amazonas, state fire spokesman Lt. Clovis Araujo said.

He said 92 people were rescued by a nearby floating police station and several small boats.

"Rescue teams are still searching for another 20 passengers who we fear have drowned," Araujo said. "The chances of finding them alive are remote."