Terror sites have been pushing this video all over the place, claiming that it shows Hamas downing an Israeli plane:
Conveniently, they say that the wreckage fell into the Mediterranean, so they cannot recover it.
Their slow-motion sections show an explosion about one second after launch, so either the plane was really, really low - or their claimed Stinger (really, Strela) missile exploded a few feet above ground.
(Although the explosion seems to occur beneath the missile, so perhaps they just faked an explosion to coincide with the launch.)
(h/t Judge Dan for missile ID)