NEW CASTLE, Ind. - A New Brighton couple was killed Saturday afternoon when the vehicle they were riding in slammed into a semi on I-70 in New Castle, Ind.

Slyvia Kay Shaw, 66, and John Leonard Shaw, 66, both of New Brighton, were killed in the 4-vehicle crash on Saturday afternoon. An unidentified 13-year-old passenger suffered serious injuries in the crash and was taken by air to an Indianapolis hospital.

Authorities said the Shaws were struck from behind by a semi, pushing their car into another semi. They also struck another vehicle due to the impact from the first collision.

None of the other drivers were injured in the crash.

The investigation is ongoing.