What we know about Weatherford ammonia leak

WATCH: Eerie video from inside hotel shows chemical spill in Weatherford, Oklahoma

Chemical spill prompts evacuations, hospitalizations in Weatherford

Tornado sirens blare during storm in Weatherford, Oklahoma

Hotel guest captures video of ammonia leak in Weatherford

Northern Lights Display in Weatherford, Texas

Weatherford animal control investigates reports of animal poisonings and decapitations

'People will be responsible': Weatherford hotel guests caught in chemical cloud outraged over leak

36 hospitalized after ammonia leak prompts evacuations in Weatherford