AMARILLO, TEXAS -- Four people are now behind bars after police found eight credit cards being used without authorization.

Amarillo Police stopped a vehicle in the 4300 block of South Western after a man was seen standing at an ATM with a hoodie over his face.

A search of the vehicle revealed eight credit cards and about $400 in cash. On some of the credit cards, police say the pin numbers were written on the back.

The investigation is ongoing and Khy Rigel, 19, James Sanderson, 19 and Kyle Harden, 19, were booked into Randall County for credit card abuse. 19-year-old Garrett Hiller was also booked for credit card abuse in addition to possessing identifying information.