At least 100 people went missing on Wednesday in Peru after the motorboat they were travelling in sank in the Amazon river, Peruvian radio station RPP reported.
According to RPP, some 80 survivors had been rescued, and two bodies had also been recovered.
The motorboat Camila, which had a capacity for 160 passengers and according to survivors was carrying at least 200 at the time of the accident, sank as it travelled through the village of Santa Rosa, near the Colombian border. It reportedly had a hole in its hull.
The accident happened around 2 am, when most of the passengers were asleep.
The authorities took a long time to reach this remote area, and preliminary rescue efforts were carried out by locals.
The Amazon River is the largest in the world, measured by volume of water flow.