Subway, the world's largest fast food chain with 37,000 locations, is facing criticism after an Australian man posted a picture on the company's Facebook page of one of its famous footlong sandwiches next to a tape measure that seems to shows it's just 11 inches.

New York Post front cover abour Subway footlong sandwiches (NY Post)

More than 100,000 people have "liked" or commented on the photo, which has the caption "Subway pls respond." Lookalike pictures have popped up elsewhere on Facebook. And The New York Post conducted an investigation that found four out of seven footlong sandwiches were shy of the 12 inches that makes a foot.

The original photo was no longer visible by Thursday afternoon on Subway's Facebook page, which has 19.8 million fans. A spokesman for Subway, which is based in Milford, Conn., said Subway did not remove it.

Subway also said that the length of its sandwiches may vary slightly when its bread, which is baked at each Subway location, is not made to the chain's exact specifications.

"We are reinforcing our policies and procedures in an effort to ensure our offerings are always consistent no matter which Subway restaurant you visit," read an e-mailed statement.

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