A 62-year-old man with US and Canadian citizenship has been arrested in Canada over a federal child exploitation case in Hawaii, a step forward for prosecutors.

• Donald Steven Lang is accused of producing sexually explicit images of a minor aboard his sailboat in Hawaii two years ago.
• Canadian authorities arrested him at the request of the US after a Hawaii grand jury indicted him.
• He faces similar charges in Idaho.
• A conviction in the Hawaii case carries at least 15 years and up to 30 years in federal prison.

Outlook: Extradition proceedings to bring him to Hawaii are the next step.