After four hours camped inside the Sydney electorate office of federal Labor MP Anthony Albanese, protesters against the proposed Adani coalmine in Queensland have ended their rally peacefully.
A group of 50 people - including many grandparents - entered Mr Albanese's Marrickville office about 3pm on Thursday with camp chairs, blow-up mattresses, pillows and pyjamas with many wearing "Stop Adani" headbands.
The protesters ordered pizza, sang songs and received cheers from passers-by before peacefully leaving the office about 8pm.
It was so peaceful that police were never called and they even locked up Mr Albanese's office at the end of the day, protest spokesman Ben Pennings told AAP.
"We had huge support from people driving by in peak hour traffic which was great," Mr Pennings said.
A spokesman for Mr Albanese said he was in India leading a parliamentary delegation and unlikely to comment on the protest.
Thursday's occupation comes as national polling shows 77 per cent of people oppose the Adani mine.
Mr Pennings said it wouldn't be the last rally, with plans underway for another one.
"We'd love him (Mr Albanese) to be on our side," he said.
"He's got a responsibility as a progressive MP to actually be fighting for this."
Jan Brennan from Lismore in northern NSW is a grandmother of three who's opposed to new coalmines being built.
"I'm here representing my whole family," she told AAP on Thursday.
Three women from the Illawarra group Knitting Nannas Against Greed sat outside the front door of the office knitting on fold-out chairs.
Annie Marlow says Adani's proposed mine would be "the dirtiest coal that you could imagine".
"Why would you dig it up when we face a climate crisis," she said.
Gillian Reffell, a grandmother in her 60s, insists the protesters will camp inside the office until Mr Albanese agrees to join fellow Labor politicians who've come out in opposition to the mine.
"Albo has sold us out, listening to lobbyists and party donors rather than Labor supporters," Ms Reffell said in a statement.
"We're camping out in Albanese's office until he listens to his constituents. We want Albo to help us stop Adani."
Indian conglomerate Adani has started work on roads and rail infrastructure for the $16 billion Carmichael coal project before securing funding, News Corp Australia reported on Thursday.
The ABC reports a Chinese state-owned company is in negotiations with Adani and its principle engineering and procurement contractor Downer EDI.
If the deal was successful it would reportedly see the company awarded contracts to build equipment in return for China's financial backing of the Carmichael mine.
Some 100 anti-Adani protesters targeted an international mining conference in Melbourne on Wednesday.
The group made it past security and into the conference where they disrupted presentations.
