Update: May 21, 11: 40 a.m. IST — Smoke alerts had been detected on EgyptAir flight MS804 before the plane crashed in the Mediterranean sea, reports said on Saturday.   

Smoke alerts from the toilet and the aircraft's electricals were detected, according to Aviation Herald, which cited flight data records, on Friday. 

Human remains, personal belongings and debris from the aircraft was found in the Mediterranean sea, the Civil Aviation Ministry statement was quoted as saying by Reuters on Friday.

Original Story — The Egyptian Navy has found debris of EgyptAir flight MS804 and belongings of the passengers on board the plane 290 kilometres north of the Mediterranean port city of Alexandria, Reuters reported, citing a military statement.

The navy is looking for the black box of the plane that reportedly disappeared with 66 people on board at around 2.45 a.m. (local time) on Thursday while flying from Paris to Cairo. French President Francois Hollande later confirmed the aircraft had crashed into the Mediterranean Sea.

"Egyptian aircraft and navy vessels have found personal belongings of passengers and parts of the wreckage 290 kilometres (180 miles) north of Alexandria," the Telegraph UK quoted the Egyptian military spokesman as saying.

Chief Egyptian investigator Ayman el-Mokadam, and French and British investigators, along with expert from AirBus, would examine the debris and passengers' belongings found in Alexandria, the Associated Press quoted Egyptian airport officials as saying.

Meanwhile, a journalist with the Times cited Greece's Ministry of National Defence as saying that bodies have also been found along with the debris.

At least 30 Egyptians nationals, 15 French, two from Iraq and one each from Britain, Belgium, Kuwait, Saudi Arabia, Sudan, Chad, Portugal, Algeria and Canada were on board the flight when it crashed. The reason behind the crash has not been ascertained yet.