Hundreds take to Sydney's streets for same-sex marriage rally

Hundreds of people have shown their support for same-sex marriage at a rally outside Sydney's Town Hall.

Protesters carried signs saying, "Love is about hearts not parts", "We didn't vote on your marriage" and "Just let my mums get married" at the event at Town Hall, organised by GetUp and Community Action Against Homophobia.

GetUp marriage equality campaign director Sally Rugg told the crowd they "could not rest" until the law reflected the value of equality.

The protesters later marched to Oxford Street chanting "gay, straight, black or white, marriage is a civil right".

Meanwhile, in Melbourne chilly temperatures kept crowds small with roughly 30 people attending a snap rally at the State Library in the city.

Organised by Equal Love, the march was also attended by Victorian Greens senator Janet Rice, who said she wanted to a see a free vote in parliament.