No evidence of Taco Bell employees putting rat poison in Colorado man's food, police say

Investigators in Colorado found no evidence that a Taco Bell employee placed rat poison in a man's food, police said Friday. Police made the announcement after reviewing video footage from the Denver-area location where the man bought the food Sunday and later fell ill, the Arapahoe County Sheriff's Office said in a statement.

"Although there is no evidence that the employees at Taco Bell put the rat poison in the food, investigators can not account for how it got in the food," the sheriff's office said.

The unidentified man was taken to a hospital Sunday after he took a bite of a soft taco he brought home from the eatery and "felt a burning in his mouth and began to vomit," according to the statement. Sheriff's deputies at the hospital saw a "greenish-gray substance" in the taco, and lab tests confirmed the presence of rat poison in the food, the sheriff's office said.