Britons caught up in devastating twin earthquakes in Turkey have been urged to make contact with family members to report they are safe.
More than 4,800 people are known to have been killed in the south of the country and northern Syria with injuries rising to at least 15,000 and thousands left homeless.
Although away from major tourist destinations, the quake zone covers a vast area with warnings that the death toll could multiply.
More: Intrepid Travel sets up Turkey earthquake appeal
Warning to British travellers as deadly earthquakes hit Turkey
The first 7.8 magnitude quake struck in the early hours of Monday near Gaziantep as people slept and was followed by a second at 7.5 magnitude at 1.30pm local time causing further damage together with after-shocks.
Global aid agencies have responded with appeals for help as rescue teams continue to search through the rubble of collapsed buildings for survivors.
The latest Foreign Office travel advisory said: “If you are in Turkey or planning to travel there you should follow the information and advice from local authorities/your tour operator.
“If you’re in the Gaziantep, Kahramanmaras or neighbouring provinces and it is safe to do so, contact your friends and family to tell them you are safe.”
The UK has sent 76 search and rescue specialists, four search dogs and rescue equipment. In addition to an emergency medical team.
A Foreign, Commonwealth & Development Office (FCDO) spokesperson said: “The government is in contact with British humanitarian workers in the affected areas, and we stand ready to provide support to any British nationals affected.”
The FDCO added that anyone in Turkey and in need of urgent help should call +90 312 455 3344.
People in the UK concerned about relatives or friends should call the FCDO in London on 020 7008 5000.
More: Intrepid Travel sets up Turkey earthquake appeal
Warning to British travellers as deadly earthquakes hit Turkey