2008 Yaris Serpentine Belt Gone

[Zessira]

I was driving my Yaris when there was a loud bang as I accelerated. The charging system light came on, followed by the low engine coolant indicator light. The check engine light came on as well. I was 15 minutes from home, so I chanced it and drove home. It drove fine and I made it home. The check engine light DTC: P0117-Engine Coolant Temperature Circuit Low. Under the hood, the serpentine belt was gone. My question is, can I just replace the belt, or does the timing need to be checked?