Not far from the Egyptian seaside resort of Hurghada, an Austrian woman died after a shark attack.
The animal approached the 68-year-old woman while she was swimming, the news channel "Al Arabiya" reported, citing Egyptian authorities.
She suffered shock and died in hospital.
The Russian agency Ria Novosti reported that the woman lost an arm and a leg in the attack.
The Austrian Foreign Ministry in Vienna confirmed the death of an Austrian.
According to media reports, the woman is said to have been married to an Egyptian and lived in Hurghada on the Red Sea.
Tourists watched the tragic scenes before her death from the beach and from a jetty.
Video of the incident shows the woman in red-dyed water trying to escape from the mako shark.
Meanwhile, men from the jetty try to pull her out of the water with a rope.
The beach was closed for three days.
The Red Sea is a popular destination for divers, among others.
Shark attacks are very rare there.
However, there have also been isolated cases of deadly attacks.
In 2018, a tourist from the Czech Republic died after a shark attack, as did a German in 2015 and a German pensioner in 2010.
Globally, there are few fatal shark attacks annually.
Surfers are particularly affected when sharks bite their arms or legs because they mistake them for seals. Humans are not on the animals' menu.
Last year, researchers from the Florida Museum of Natural History and the American Elasmobranch Society recorded a total of 11 shark bite deaths, nine of which were believed to be unprovoked.
The experts speak of unprovoked attacks when there is no typical stimulus from humans to the animals.
Provoked attacks are when there has been prior human contact, such as divers attempting to touch a shark.
Or fishermen who want to remove a shark from a net, according to the International Shark Attack File.
Australia led the world with three unprovoked deaths, followed by New Caledonia with two.
The United States, Brazil, New Zealand and South Africa have each had one fatal unprovoked shark attack.
svs/dpa