Six search dogs from the UK have travelled to Venezuela and are assisting the UK International Search & Rescue team (UK ISAR), the British government says.

The Foreign Office says rescuers are also being supported by the Royal Air Force, with "specialist rescue equipment and drones" being used to support life-saving operations.

UK ISAR, which has 68 specialists in the country, says its teams are now working across five different sites, with its search dogs being used to "detect signs of life within collapsed structures".

Earlier, West Midlands Fire Service's Mark Leeson, who is in Venezuela as part of the UK-wide team, told the BBC that the window for finding survivors was shrinking, but adds "every now and then you will get that miracle rescue".