The lasers were attached to said sharks.
Another one for the X-Files:
Egypt's Governor of southern Sinai lays the blame for recent shark attacks on Israel's foreign intelligence agency, the Mossad. Southern Sinai Governor Abed Al-Fadij said: "We must not discount the possibility that Mossad threw the shark into the sea, in order to attack tourists who are having fun in Sharm al-Sheikh."
"Mossad is trying to hurt Egyptian tourism in any way possible, and the shark is one way for it to realize its plan," he explained.