The Mayor of London will announce his chosen hub airport options for submission to the Davies Commission on the future of aviation capacity in the UK this morning.
According to a report in The Telegraph, Boris Johnson will reveal that he believes a new airport on the Isle of Grain in North Kent has the "greatest potential."
The move could put the mayor on a collision course with David Cameron, who removed Transport Secretary Justine Greening from her position last year after she campaigned against expansion at Heathrow.
More top news
Labour leadership contender Owen Smith has called his rival Jeremy Corbyn a "lunatic" at a rally.
A 6.2 magnitude earthquake has left at least 10 people dead and caused destruction in central Italy.
Witnesses reported "intense bombardments" inside the IS-held stronghold of Jarablus in an air and land assault.