The Foreign Office is exploring after Turkey says 13 outsiders are among the casualties - three of whom were double nationals.
No less than 41 individuals have been slaughtered after three suicide planes opened flame before exploding themselves at Istanbul's primary airplane terminal.
Authorities said the quantity of dead is liable to ascend to 50, while Turkey's head administrator said Islamic State aggressors seemed to have done the assault, which left around 239 individuals harmed.
Witnesses said one assailant opened discharge in the flights corridor with a programmed rifle, sending travelers plunging for spread, before each of the three exploded themselves in or around the entries lobby a story underneath.
Dead bodies could be seen scattered in the street simply outside the terminal building, while video developed demonstrating a cop shooting one of the assailants, then escaping minutes before they exploded their suicide vests.
Remote Office authorities said they were "direly looking for additional data" after Turkey said the lion's share of those slaughtered were Turkish, yet 13 outsiders were likewise among the casualties - three of whom were double nationals.
Five Saudis, two Iraqis, an Iranian, Jordanian, Tunisian, Ukrainian, Chinese and a Uzbekistan resident were affirmed to be among the dead as the air terminal revived on Wednesday, which was proclaimed a day of national grieving.
It is comprehended the loss of life does excludes the suicide aircraft.
Talking in Brussels, David Cameron depicted the assault as "ugly".
The assault at Istanbul Ataturk - Europe's third busiest air terminal - is one of the deadliest in a progression of suicide bombings in Turkey, which has attempted to contain the contention in neighboring Syria and an uprising by Kurdish aggressors.
Paul Roos, 77, portrayed seeing one of the assailants "haphazardly shooting" in the takeoffs lobby.
Mr Roos, a South African coming back to Cape Town with his significant other after an occasion in southern Turkey, said: "He was simply terminating at anybody coming before him.
"He was wearing all dark. His face was not veiled. I was 50 meters far from him.
"We ducked behind a counter however I stood up and watched him.
"Two blasts went off not long after each other. At that point he had quit shooting."
A lady named Duygu, who was at visa control having quite recently touched base from Germany, said she tossed herself onto the floor with the sound of the blast.
A few witnesses likewise reported listening to gunfire in the blink of an eye before the assaults.
"Everybody began fleeing. All around was secured with blood and body parts. I saw slug gaps on the entryways," she said outside the air terminal.
Turkey's President Tayyip Erdogan said the assault ought to serve as a defining moment in the worldwide battle against aggressor bunches.
He said: "The assault, which occurred amid the blessed month of Ramadan, demonstrates that terrorism hits with no respect for confidence and qualities.
"The bombs that blasted in Istanbul today could have gone off at any airplane terminal in any city around the globe."
Planned flights from the air terminal were incidentally ceased in the quick consequence of the assault and travelers were taken to inns, Turkish Airlines said, while a few flights to the air terminal were occupied.
English Airways travelers on flight BA680 from London Heathrow to Ataturk were come back to the UK in the wake of the impacts.
The flight had been because of area at around 11.40pm (9.40pm UK time), not long after the blasts.
As indicated by the Dogan news organization, a plane conveying Albanian Prime Minister Edi Rama was arriving at the airplane terminal when the assault happened. He and his company were taken to an official home.
Turkey has endured a spate of bombings this year, incorporating two suicide assaults in visitor territories of Istanbul faulted for Islamic State, and two auto bombings in the capital, Ankara, which were asserted by a Kurdish activist gathering.
In the latest assault, an auto bomb tore through a police transport in focal Istanbul amid the morning surge hour, killing 11 individuals and injuring 36 close to the principle traveler locale, a noteworthy college and the chairman's office.
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