A man has died after a three-car crash at the Dinsdale roundabout in Hamilton, shortly after 2pm today.

Four other people have been transported to Waikato Hospital with serious to minor injuries.

Emergency services are at the scene of the crash, where traffic diversions are in place.

A serious crash investigation unit from Waikato Police will look into the crash.

The vicitm will not be named until his family has been notified.