No, the lost city of Atlantis has not been found. Google Earth images showing what appeared to be a grid of streets on the ocean floor off the coast of Africa were actually tracks left by boat sonar.

The Daily Telegraph caused the brief flurry of excitement among Atlantis hunters by publishing Google Earth pictures on Friday of an unexplained grid on the seabed 620 miles (1,000 kilometers) off the northwestern coast of Africa.

An Atlantis expert told the paper that the grid was located at one of the possible sites of Atlantis, the legendary city described by Greek philosopher Plato.

Google, however, had another explanation.

"It's true that many amazing discoveries have been made in Google Earth -- a pristine forest in Mozambique that is home to previously unknown species, a fringing coral reef off the coast of Australia, and the remains of an Ancient Roman villa, to name just a few," Google said in a statement.

"In this case, however, what users are seeing is an artifact of the data collection process.

"Bathymetric (or seafloor terrain) data is often collected from boats using sonar to take measurements of the seafloor. The lines reflect the path of the boat as it gathers the data," Google said.