The body of a 70-year-old German woman washed up on the shore at Egypt's Sharm el-Sheikh on the Red Sea after an attack on Sunday. Three Russians and a Ukrainian were injured in shark attacks last week.
The government has invited international experts to help locate the killer shark."
Some said sharks had been drawn to shallow waters after cattle being shipped in for last month's Islamic feast of Eid al-Adha had died and were thrown overboard. Others suggested it could have been part of a secret plot by Israel's Mossad intelligence agency.
"What is being said about the Mossad throwing the deadly shark (in the sea] to hit tourism in Egypt is not out of the question, but it needs time to confirm," South Sinai governor Mohamed Abdel Fadil Shousha said.