The Independent Commission Against Corruption has raided the NSW Labor party's Sydney headquarters.
The offices of the NSW Labor party have been raided by the state's corruption watchdog.
Staff from the Independent Commission Against Corruption raided the Sussex Street headquarters on Tuesday morning, sources have told AAP.
A Labor party source said the ICAC staff accessed computers when they attended the offices.
The source argued the raid had been timed to coincide with the ALP national conference in Adelaide which is attended by the organisation's heavyweights.
"It's clearly intentional," they told AAP.
A NSW Labor official said the party was "aware of extensive media coverage today of an investigation into historic political donation matters".
"The donations in question were received in 2015 and have been fully investigated by the NSW Electoral Commission with the full cooperation of NSW Labor, including the provision of all relevant documents," the spokesperson said.
An ICAC spokeswoman said the commission would not be commenting on operational matters.