MARYLAND HEIGHTS, Mo. – Three juveniles and one adult are in custody following an early morning bi-state police chase.

The incident started with a carjacking in Alton, Illinois around 10:50 p.m. Tuesday.

Alton police pursued the vehicle along with another vehicle that was stolen out of Brentwood, Missouri.

The vehicle from Alton crashed and the suspects jumped into the car stolen from Brentwood. The suspects got off at Bennington Road in Maryland Heights and fled on foot.

Police located all four suspects with the assistance of K9 and aerial choppers.