A number of people were restrained by police during a snap pro-Palestinian rally in Sydney on Thursday evening.
The event, attended by members of the Students for Palestine and Palestine Action Group as part of the global Block Everything movement, was held in response to the interception of a Gaza-bound aid flotilla.
An estimated 400 people gathered in the city centre, and about an hour into the rally protesters spilt onto the light rail tracks on George Street.
Video footage of the event shows protesters lying on the ground in what appears to be an attempt to block traffic.
Footage also shows police restraining people and holding them on the ground.
Officers were then seen trying to clear the area, and some members of the group moved along Bathurst Street in the direction of Darling Harbour.
Police said there were no arrests, and the group had dispersed by about 7:30pm.
Olivia Rahman, 19, said she saw about three or four people restrained by police.
"I was up-front ... we were trying to move forward, they [police] were barricading us with cop cars and bikes and their foolish nonsense and they pushed me and other people down," Ms Rahman said.
NSW Police told the ABC the event was an "unauthorised assembly".
'Australian government has done nothing'
Organisers told the ABC they did not believe those restrained by police were doing anything wrong, and the group was exercising its right to protest.
They also said the rally was to demand justice for those on board the fleet of boats that made up the Global Sumud Flotilla, which was intercepted by the Israeli Navy.
The fleet of pro-Palestinian activist boats bound for Gaza was intercepted in the early hours of Thursday with troops boarding.
The boat carrying Swedish climate activist Greta Thunberg was the first to be boarded, and a video posted by the Israeli foreign ministry appeared to show her being detained.
Two Australians — Sydney content maker Abubakir Rafiq and doctor Bianca Webb-Pullman — had also been detained, according to organisers of the flotilla.
Sheikh Wesam Charkawi said he attended in support of Mr Rafiq and Ms Webb-Pullman, and called on the government to act "immediately".
"We're here tonight because the Australian government has done nothing," he said.
"They haven't advocated ... to put pressure on the Israeli government."