Two of Labour's major Auckland transport election promises could take a back seat, as the Government sorts out its funding priorities.
The party promised to extend electrified rail from Papakura to Pukekohe, and add a third track on the busy freight and passenger rail line between Westfield and Wiri.
But in a speech to the Auckland Chamber of Commerce on Monday morning, Finance Minister Grant Robertson said the options were only being investigated.
"There are other priorities around New Zealand as well, in terms of investing in rail and getting coastal shipping going, improving our regional roads," he said.
Mr Robertson says, while the two projects remain Government policy, they're competing with others in Auckland and further afield.
Other Auckland election promises include building light rail from the CBD to the airport within a decade, and putting $30 million towards a Skypath for pedestrians and cyclists across the Auckland Harbour Bridge.
Labour has also promised to build rail passenger services linking the "Golden Triangle" of Auckland, Hamilton and Tauranga.