Swimmers at a beach in Marbella panic after seeing a “shark” fin in the water and sprinting toward shore to get away. Several outlets report that people believed the animal posed an immediate threat.
Accounts then converge on an outcome: the creature is identified as a tuna rather than a shark. The reports describe a case of mistaken identification, where the animal’s appearance leads swimmers to react as if a predator were present. The tuna is seen in the same area where swimmers had been in the water, prompting the brief scare.
The differing emphasis across outlets focuses mainly on the misunderstanding rather than on any reported injury or damage. No additional details are provided in the supplied coverage about any official response, measurements, or the tuna’s exact species beyond the correction from “shark” to “tuna.”