Long delays at Heathrow Airport

Long delays faced by passengers traveling by air to London Heathrow Wednesday, due to industrial action of employees working in the passport control.
The department at Heathrow airport is already in consultation with the airlines to reduce the number of passengers to be moved.
However, British Prime Minister acknowledged in his statements the previous day that there will be a problem at airports and ports, however, there is no general problem of security.
Details for airports, according to the BBC:
* Stansted Airport considers that the inconvenience will be lower than that at Heathrow, therefore has asked the companies to reduce their flights.
* The Airport Southampton and Newcastle the problem will be minimal.
* In Manchester the queues for passport control will be greater, but there will be a general problem.
* Small is expected to be a problem at the airport in Edinburgh, while Aberdeen airport is not expected problem.