New Hampshire police are asking the public's help in locating a 17-year-old last seen at his high school in Conway four days ago.

Conway police say Dalton Blake has no history of running away and has not made contact with family members since Monday.

Conway police Sgt. Alan Broyer says Blake was despondent at the time of his disappearance and that his family is very concerned about his well-being.

Blake is described as a white male, 6 feet tall with short brown hair and brown eyes. He was last seen wearing a tan South Pole zip-up hoodie sweatshirt, black jeans tan work boots and a grey striped stocking hat.

Anyone with information is asked to call the Conway police at 603-356-5715.