Dozens of protesters have forced their way into the COP30 climate summit venue and clashed with security guards at the entrance.
Shouting angrily, the protesters demanded access to the UN compound where thousands of delegates from nations around the world are attending this year's UN climate summit.
Some waved flags with slogans calling for land rights or carried signs, saying"our land is not for sale".
An indigenous leader from the Tupinamba community near the lower reaches of the Tapajos River in Brazil told Reuters that they were upset about ongoing development in the forest.
"We can't eat money," said Gilmar, who uses only one name.

Security guards pushed the protesters back and used tables to barricade the entrance.
A Reuters witness saw one security guard being rushed away in a wheelchair while clutching his stomach.
Another guard with a fresh cut above his eye told the news agency he had been hit in the head by a heavy drumstick thrown from the crowd. Security confiscated several batons.
The protesters dispersed shortly after the clash.
They had been in a group of hundreds who marched to the venue in the Amazon city of Belem.
Security guards later allowed delegates to exit the venue, having earlier asked them to move back inside until the area was clear.
COP30, which started on 10 November and ends on 21 November, comes at a precarious time for climate action.
The conference has been met with controversy over its location in the Brazilian city, on the outskirts of the Amazon rainforest.
Brazil's President Luiz Inacio Lula da Silva has highlighted indigenous communities as key players in COP30 negotiations.
Dozens of indigenous leaders arrived earlier this week by boat to take part in the talks and demand more say in how forests are managed.
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