Sweet Death!

Two contractors fell in a chocolate tank.

Did you know that being trapped in a storage tank can be deadly?

Especially if its grain, soybeans, oil and chocolate. You can literally suffocate inside storage tanks.

Emergency crews had to rescue two contractors from a chocolate storage tank in Elizabethtown, Pennsylvania.

It happened at a Wrigley Mars processing factory. The two contractors would have suffocated if it wasn't for the workers noticing their screams. The emergency crews had to cut a hole into to storage tank to rescue them.

The two people work for an outside contracting firm, officials said, and it’s not clear how they fell into the tank. Emergency responders were able to free the pair by cutting a hole in the bottom of the tank, officials said.

Two contract workers from Manheim-based I.K. Stoltzfus Service Corporation had been doing maintenance on the tank and were unable to get out on their own.

There was chocolate in the tank, but it's not clear how much.

Emergency medical services said the circumstances were potentially dangerous.

"It could have been a life-threatening situation, just based on what needed to be done to get them out," said Edna Kline, with Northwest EMS.

The workers were rescued and taken to a hospital. There is no word on their conditions.

It wasn’t clear if either person was injured, but they were taken to hospitals to be evaluated. Their names and further details on their conditions were not disclosed.

The federal Occupational Safety and Health Administration is investigating the incident. An OSHA official declined comment on the matter, citing the ongoing investigation.