RICHTON PARK, Ill. (CBS) — There were tense moments Friday as divers from six south suburban looked for a woman and child believed to be missing when a car ended up on the bottom of a small lake in Richton Park.

It turned out they were never there.

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A 911 call at about 2:30 p.m. summoned firefighters to the edge of Lake George, near the intersection of Sauk Trail and Cicero Avenue.

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Fire Chief Rodney Wilson said the man whom they found dripping wet at the edge of the lake was adamant that his wife and daughter were submerged in the car, which sat in 10 feet of water.

Wilson immediately called in divers, who searched the shallow, four-block-long lake from one end to the other and found nothing. A call to the man’s home then found the woman and child home, unhurt. Wilson said they had not been in the car.

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How the car ended up in the lake remains under investigation. Paramedics transported the man to Advocate Christ Medical Center in Oak Lawn.