Egypt has so far found no evidence of terrorism in the crash of a Russian passenger jet, the country's chief investigator said Monday.
ISIS released a picture Wednesday of what it said was the improvised bomb that brought down the Russian Metrojet plane over Egypt's Sinai Peninsula last month.
Russian president vowed to take revenge on the airline bombers after investigation concluded a terrorist bomb had brought it down.
The Metrojet Airbus A321 broke up in midair 20 minutes into its journey from the resort town of Sharm el-Sheikh to St. Petersburg on Oct. 31.
The Metrojet flight crashed in Egypt's Sinai Peninsula on Oct. 31, killing all 224 aboard.
As investigators piece together what brought down a Russian plane in the Sinai Peninsula, officials are taking a closer look at security procedures.
The Metrojet plane crashed shortly after takeoff from Egypt's Sharm el-Sheikh airport on Oct. 31. All 224 people on board were killed.
Sen. Dianne Feinstein (D-CA) says that the United States should share information regarding terrorist attacks with Russia and Egypt.
A statement from the Egypt's Ministry of Aviation urged people not to jump to conclusions following various reports.
"A spectrum analysis will be carried out to identity the nature of this noise," the head of the investigation committee said Saturday.
A passenger jet carrying vacationers came close to a rocket as it came in to land at Egypt's Sharm al-Sheikh in August, the U.K. government confirmed.
The voice recorder was recovered and is working, which could provide clues as to why Flight 9268 crashed, killing all 224 people aboard.
DHS ordered Friday more security measures for U.S.-bound commercial flights from certain foreign airports after deadly plane explosion in Egypt.
Russia suspended all flights to Egypt as the investigation into the crashed Metrojet airliner turned to the possibility it had a bomb in the hold.
No U.S. airlines fly to or from the airport where a Metrojet flight off from, but the crash could expose holes in security where they do operate.
The U.S. and Britain say an explosive device likely brought down the plane. But Russia and Egypt warn against rushing to conclusions.
NBC's Tom Costello speaks with TODAY's Matt Lauer about how airlines in the U.S. are responding to the Russian Metrojet crash in Egypt.
Investigators have found no evidence so far that a bomb brought down the Russian jet that crashed after breaking up over the Sinai, Egypt said.
"Emergency measures" were being drafted to rescue stranded vacationers in Sharm el-Sheikh as investigators focus on an ISIS-linked bomb as the likely cause of the Metrojet plane crash.
Drone aerials shows charred Metrojet crash site in Hassana, Egypt, as searchers scour the wreckage for remains of passengers.
If ISIS managed to bomb a Russian charter jet out of the sky, it dramatically raises the stakes for the U.S.-led coalition battling the group.
Cell phone video shot just couple of hours after the October 31st crash shows smoke rising from the plane wreckage and debris strewn on the ground.
The U.S. is focusing on ISIS as possibly having brought down Russia's Metrojet Flight 9268 with a bomb, U.S. officials told NBC News.
Flight 7K9268 was carrying 217 passengers and seven crew from the Egyptian resort of Sharm el-Sheikh to St. Petersburg when it crashed, killing all on board.
Investigators on Wednesday began analyzing the "black boxes" from the Metrojet plane which broke up in midair, sources said.
U.S. satellites detected an infrared flash heat signature at the same time and altitude as the plane's last known location.
American intelligence sources also told NBC News that none of the passengers or crew members were found on any U.S. terrorism databases.
The removal of bodies from the scene of the Metrojet crash was completed as 28 bags containing victims' remains were flown to Russia for DNA testing.
A senior Defense official told NBC News Monday that an American infrared satellite detected a heat flash at the same time and in the same vicinity.
Investigators were focusing Monday on what might have caused the Metrojet Airbus A321 to break up in midair.
Alexander Smirnov of Metrojet, whose charter flight crashed in Egypt, said no technical fault could have caused the Airbus to break up midair.
The Metrojet-operated Airbus A321 crashed Saturday in Egypt's Sinai peninsula, killing all 224 on board.
Floral tributes placed at an informal memorial outside St. Petersburg airport, where residents are still in a state of shock at the weekend's crash.
The Russian plane that crashed over Egypt's Sinai Peninsula "broke up in the air," a Russian aviation official said Sunday.
A Russian aircraft carrying 224 people, including 17 children, crashed Saturday in a remote mountainous region in the Sinai Peninsula.
The plane was flying from Sharm el-Sheikh to St. Petersburg.