An 11-year-old boy is in a serious condition after the scooter he was on crashed with a ute in Hamilton.

The boy was riding his scooter on between Lachlan Drive and Aberdeen Drive in Dinsdale at 3.23pm today when he collided with a ute. Police arrived soon after the crash.

He was taken by ambulance to Waikato Hospital in a serious condition.

Police are calling for any witnesses who saw the accident to contact them.