Commuters heading into Auckland on the north-western motorway are being warned to expect delays after a two-car crash.

SH16 NORTHWESTERN MWY, SOUTHBOUND - 6:30AM

A multi-vehicle crash is blocking lanes by the Lincoln Rd citybound on-ramp. Pass with care and expect delays this morning. ^TP pic.twitter.com/QWr7HmOttp — NZTA Akld & Nthlnd (@NZTAAkl) October 9, 2019

The crash happened on the Lincoln Road on-ramp just before 6.30am.

Police said one person has moderate injuries.

The Transport Agency said all lanes are now open, but drivers are being told to allow extra time.