According to state-affiliated media, the Egyptian air force shot down a drone on Saturday off the coast of the Israeli border, off the Sinai Peninsula.
Further up the coast, witnesses claimed to have witnessed a second flying object crash onto land.
The Huthi rebels in Yemen, who are backed by Iran, claimed to have shot several drones at southern Israel.
Speaking on X, the previous Twitter platform, a Huthi official stated that the operation, which was directed against “sensitive” locations within Israel, was a component of the rebels’ push for Israel to stop its “aggression” in Gaza.
Egyptian television channel Al-Qahera reported “the crash of an unidentified flying object in Egyptian territorial waters near the city of Dahab”.
It quoted witnesses as saying “air defences detected the flying object and dealt with it immediately.”
A source in the security services told AFP that it was a drone of which “the origin is still unknown”.
In recent weeks, Yemen’s Huthi rebels have stepped up their operations in support of Gaza, repeatedly targeting shipping passing through the Red Sea, whether or not it is headed to Israeli ports.
The attacks have caused major disruption to the key shipping lane between Asia and Europe, with two global firms announcing they were redirecting their vessels.
The Huthis have carried out previous drone launches towards southern Israel since Hamas launched its shock cross-border attack on October 7, triggering an all-out offensive against the militant group which rules Gaza.
In late October, six people were wounded in Egypt when two drones came down in the Sinai Peninsula.