alternater belt on 1995 Ford Crown Victoria

my car started making a loud sound when i turned the key and then smoke belt snapped what could this be?

Asked by for the 1995 Ford Crown Victoria
2 answers
With the belt now off the car I would turn all the pulleys at the front of the engine by hand (engine off off course) and see if the tensioner, alternator air compressor or any other component driven by the fan belt has seized.
froze idler pully, froze AC, froze water, something froze.