Is Mossad training killer sharks?

This is the claim attributed to Mohamed Abdul Fadil Shousha, the governor of South Sinai, in response to the recent spate of shark attacks in the resort of Sharm el-Sheikh in Egypt. He was quoted as saying:

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.

Israeli officials dismissed the claims as "ludicrous".

Yeah, but they WOULD say that wouldn't they?