Two passengers had serious injuries in a single-vehicle accident on Interstate 35 near Pattonsburg Friday evening. 45-year-old Stephanie ONeal and 31-year-old Merana Weakly-Velazquez, both of Bethany, were taken to Cameron Regional Medical Center following the accident at about 8:45 pm. According to the report, 45-year-old Jeffrey ONeal of Bethany was northbound when he hydroplaned and went off the east side of the road and struck an embankment and his car overturned. The passengers were not wearing seatbelts.