After a swimmer reported being attacked by a shark on Tuesday, tourists on five beaches near L'Escala (Alt Empordà) in Catalunya, Spain were told to stay out of the water for several hours.
Initially the media was stating that a shark had approached the Moll Grec beach in Sant Martí d'Empúries on Catalunya's Costa Brava.
At around 5:30 p.m. on Tuesday, when the swimmer claimed that minor injuries on his arm had been caused by a blue shark, Red Cross lifeguards warned bathers to get out of the water.
Red warning flags were raised and five beaches closed, just as the summer season is really taking off.
However, according to the Catalan daily, El Periodico, a search followed, but no trace of the animal was found.
Reportedly none of the onlookers who had claimed to have seen the shark were actually able to provide any corroborating details, and on top of this, on examining the injured man's arm, doctors ruled out the possibility that the injury had been caused by a shark.
The incident was dismissed as a false alarm and the mayor of L'Escala blamed the rumor on "nervousness".
Anyone who had mentally been hearing the "Jaws" theme can now return to the beach.
While the blue shark (Prionace glauca) is commonly found off the coast of each continent, there have only been 13 recorded attacks of humans, which have led to only four fatalities.