OMAHA, Neb. (AP) — The Nebraska Medical Center is caring for seven sets of twins this week, which officials say is a record for the Omaha hospital.

Of the 14 babies, nine are boys and five are girls.

All but one set of twins were born in Omaha. Two boys were born in Wichita and transferred to the Nebraska Medical Center.

Hospital officials say the smallest of the babies was born at 27 weeks in November, and weighed only about 1.5 pounds. Her sister weighed about 2.5 pounds at birth.

The hospital says the other six sets of twins were delivered this year. It says all of the babies are doing well.