The driver of a car which hit a pedestrian in the Waikato on Tuesday night was not to blame for the man's death, police say.

A 25-year-old man will appear in court today charged with attacking a police officer in Ngaruawahia.

A police officer knocked unconscious at a call-out last night has barely any memory of the attack, say police.

Three teenage boys were arrested last night in relation to a pack attack which left two police officers seriously injured.