A truck and trailer has collided with a car on Thompsons Track in Waikato, leaving three hospitalised.

St John Ambulance said it was called to the scene on Thompsons Track on SH2 at 9.11 this morning.

One ambulance responded to the scene. Three patients were taken to Tauranga Hospital, one in a moderate condition and two in a minor condition.

Earlier this morning the road was blocked in both directions near Aongatete. Waka Kotahi said the crash has been cleared and all lanes are now open.