A gang wielding a gun and knives was seen storming a bus and robbing the terrified passengers on board.
Chilling security footage shows the gang boarding the bus before launching their raid on the unsuspecting travellers on 27 October.
One of the suspects is seen waving a firearm as the others hold up the victims at knifepoint.
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The incident reportedly happened aboard the 650 bus in Brazil’s Manaus state.
Those on board are said to have been threatened with the weapons before the thieves made off with around £17 from the bus conductor.
In a bid to track down those responsible, police released footage of the robbery.
Detective Charles Araújo, who coordinates the Civil Police’s public transport robbery unit, confirmed the group had been carrying one firearm and three bladed weapons.
The investigation is being handled by a specialist unit dealing with robberies on public transport.
Officers are appealing to anyone who recognises the suspects or has information about their whereabouts to come forward.
The investigation remains ongoing.
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