A leaking tanker truck spewed dangerous ammonia gas in a hotel parking lot, forcing hundreds of residents in a small Oklahoma city to evacuate and sending several dozen people to the hospital, authori...

Dozens of people were hospitalized in Weatherford, Okla., after an ammonia leak on Wednesday night made the air unsafe to breathe in some parts of the city, the authorities said.

The leak Wednesday night from a truck outside a hotel in Weatherford forced at least 500 to 600 people to evacuate their homes early Thursday while others were ordered to remain inside theirs for seve...