The causes of the crash of a Russian Airbus on Saturday in Egypt still unknown, waiting for the information from the black boxes, while the Islamic Jihad group status (EI) and sowed doubt claim authorship of death 224 occupants.
While the search efforts continue in Sinai in northeast Egypt, analyzing the two black boxes should begin on Tuesday in Cairo, according to Egyptian officials, AFP reported.
This procedure, designed to analyze these devices that record flight data and conversations on board, could last for weeks, even months if damaged.
Metrojet Russian airline said Monday that only an "external action" which did not say, can explain what happened, ruling in its wake the possibility of a "technical failure or pilot error" given the "excellent condition" of the aircraft.
In this scenario, all eyes are focused on the Egyptian branch of EI. From the same Saturday, the extremist organization claimed the destruction of Airbus in retaliation for the Russian bombings in Syria against jihadists.
However, the charge of the Russian federal air transport agency, Rosaviatsia, considered "premature" the first conclusions of Metrojet.
"There is no reason [for now] to draw conclusions on the causes of the destruction in flight of the apparatus," said its director, Alexander Neradko, estimating that "much work" and analysis of the remains of the black boxes is required.
The Russian authorities and the US, confessed to ignore a possible involvement of jihadists.
"I do not really know" if the EI is involved, said the head of US intelligence, James Clapper, who considered "unlikely" that the jihadists have adequate means to shoot down a commercial airliner in flight, but not completely excluded.
The wide dispersion of debris and bodies in the Sinai desert, a stronghold of the Egyptian branch of the Islamic State, confirms that the plane disintegrated in the air, unlike aircraft crash accidentally or voluntarily.
HORRIBLE TRAGEDY
In Saint Petersburg (Northwest Russia), where it was originally most 224 passengers and crew members killed in the Egyptian Sinai, the families of the victims began to identify 140 bodies arrived in the morning to the ancient capital Imperial.
"The identification process has begun. It is a long and laborious work that will last as long as necessary," he told AFP Igor Albin, vice governor of St. Petersburg.
A second device with the remains of other victims of the worst air disaster recorded by Russia should arrive during the night, according to the Russian Ministry of Emergency Situations.
Experts rule out that the EI available military means able to bring down a commercial aircraft at 9,000 meters above sea level, but consider it probable that the explosion of a bomb on board or that the aircraft was hit by a missile while traveling below its cruising altitude .
For the first time since the tragedy, Russian President Vladimir Putin appeared on television on Monday to pay tribute to the dignity of the reaction of the people of St. Petersburg.
"It's a horrible tragedy. At such times it is important to feel" the "support of the entire country," Putin said, stressing the need to wait for an "objective picture" of what happened said.
Several thousand people paid tribute Sunday night in St. Petersburg at the 217 passengers and seven crew members died. Russians were all but four Ukrainian and Belarusian.
The Airbus A321-200 of Metrojet, which belonged to the transport company Kogalimavia, crashed on Saturday morning at Sinai, 23 minutes after taking off from the port city of Sharm el-Sheikh heading to St. Petersburg.
Contact was lost while flying over 30,000 feet (9,000 meters), its cruising altitude.
The dispersion of the wreckage and the bodies of the passengers forced to extend the search to a perimeter of 40 kilometers, compared with 15 initials.
In Russia, local company and registered tour operator. French researchers, German and Irish should be involved in research in Egypt, a routine procedure in any incident involving an Airbus.