A 55-year-old Hood River man seriously injured in an accident while riding a motorcycle near Wasco three weeks ago has died. The Oregon State Police confirmed Mark Peters died Wednesday reportedly from injuries related to the crash. Peters had returned to Hood River for post-hospital care in late September. On September 12 Peters was northbound on Highway 97 near Wasco when a van turning off Clark Road to the southbound lane of the highway was struck by the motorcycle operated by Peters, who was ejected from the motorcycle. An Oregon State Police investigation into the accident is continuing.