( CNN) Egyptian authorities say no evidence has been found to support the hypothesi that a bomb brought down Metrojet Flight 9268 over Egypt's Sinai Peninsula over the weekend. British Foreign Minister Philip Hammond implore to differ.

“Looking at the totality of the information we have, we judge that there's a significant prospect that this could have been an explosive device, ” he said Thursday.

Should that “significant possibility” become reality, distrust may fall on a variety of terrorist groups active in the region.

Affiliates of both ISIS and al Qaeda have a presence in Egypt. Al Qaeda in the Arabian Peninsula, or AQAP, has a record of disguising sophisticated bomb and get them on commercial flights.

Even Chechen jihadists, which are currently have an important role within ISIS in Iraq and Syria, might be suspected of taking part in some way, given their perennial said he wished to reached Russian targets.

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