The British government issued a rising warning for Egypt on Saturday, referring to an "increased risk of terrorism against aviation", as British Airways and the German air carrier Lufthansa canceled flights to Cairo as a security measure. "
British Airways flights were canceled for seven days, while Lufthansa flights resumed on Sunday.
"There is an increased risk of terrorism against aviation," said the UK Foreign and Commonwealth Office (FCO) in a statement. "There are additional security measures for flights departing from Egypt to the UK. You should fully cooperate with airport security officers."
British Airways and Lufthansa ̵
"As security, Lufthansa's top priority, the airline has temporarily interrupted its flights to Cairo today as a precaution, while further assessments are being made," Lufthansa said in a statement. "We do not have any additional information at the moment."
I its own statement said British Airways: "We are constantly reviewing our security arrangements at all our airports around the world and have canceled flights to Cairo for seven days as a precaution to allow further assessment. "
Two security sources informed of the situation told ABC News that no particular threat has been discovered, but airlines are responding to ongoing concerns about security issues at Cairo airport. The launch of flights will allow airlines to review the situation," the sources said.
The US government does not plan to issue a directive, while individual US carriers monitor the situation and are in contact with other airlines and with security agencies said the sources.
Ticketed BA customers were caught at London's Heathrow Airport on Saturday, when they suddenly noticed that their flights would not take off.
"Currently, you should board a @British_Airway flight to Cairo and it will be canceled. Not for a day. Not for two days but for seven. Security risk. Someone knows something we don't do," tweeted a user walking manage @shanghai_dan.
The British Foreign Ministry also warned "all trips to the Northern Sinai governor due to continued criminal activity and terrorist attacks on police and security forces that have resulted in deaths," the agency said.  PHOTO: People gather around the great pyramid of Giza, located in the western part of the capital Cairo in Egypt on February 15, 2019. “/>
Ahmed Al Sayed / Anadolu Agency / Getty Images, FILE
In addition, officials urged the British to "all but essential journey" to: the governor of southern Sinai, except the area in Sharm el Sheikh per imeter barrier, which includes the airport and the areas of Sharm el Maya, Hadaba, Naama Bay, Sharks Bay and Nabq, "by air to or from Sharm el Sheikh and" to the west of the Nile Valley and Nile Delta regions, excluding the coastal areas between the Nile Delta and Marsa Matruh (shown on the map). "
In 2015, a Russian Saint Petersburg aircraft departing from Sharm El Sheikh International Airport crashed into a mountainous region of Egypt and killed all 224 aboard. After the crash, two airlines – Lufthansa and Air France – announced that they avoided the airspace over the Sinai Peninsula.
In his statement, the British Foreign Ministry said that about 415,000 Britons visited Egypt in 2018 and noted that most visits were trouble-free.
ABC News & # 39; Mike Trew and Joshua Hoyos contributed to this report.