Foreign Office officials have said they are "urgently seeking further information" following explosions at Istanbul's Ataturk airport in Turkey which are believed to have killed at least 10 people and injured several others.
Reports from Turkey suggested two attackers blew themselves up at the entrance to the international terminal before entering the x-ray security check.
A Foreign Office spokesman said: "We are in close contact with authorities in Istanbul and urgently seeking further information following an incident at Ataturk airport.
"Our staff in Istanbul and London stand ready to support any British nationals affected."
Turkey has suffered several bombings in recent months linked to Kurdish or Islamic State group militants.
British Airways passengers on flight BA680 from London Heathrow to Ataturk were returned to the UK in the wake of the blasts.
The flight had been due to land at around 11.40pm local time (9.40pm BST), shortly after the explosions.
A BA spokesman said: "We had one flight to Ataturk airport that has turned around and is coming back to London Gatwick.
"We don't have any other services scheduled today and we will keep the situation under review."