It comes after Emirates said it would defy the airport’s orders to cut capacity on its flights, a move which the carrier described as "unreasonable and unacceptable".
In a joint letter from the Department for Transport, director general for aviation, maritime and security and chief executive of the CAA, John Holland-Kaye has reportedly been given until noon on Friday (15 July) to assure them the airport is adequately staffed for security screening and to assist disabled passengers.