Extra checks were being carried out on air conditioning and water systems at Gatwick airport tonight after it emerged that a security worker had contracted Legionnaires' disease.
The worker, who has been admitted to hospital with the infection, works for a security company contracted by British Airways.
A spokeswoman for the airport said: "BAA Gatwick can confirm that a member of Securicor Aviation staff based at Gatwick's north terminal has been admitted to hospital with Legionnaires' disease.
"At this stage, there is no evidence that the agent contracted this disease at the airport.
"BAA Gatwick carries out rigorous and regular maintenance checks on all air conditioning and water systems, however as a precaution, both British Airways and BAA Gatwick are currently auditing all these systems and processes.
"The airport continues to operate normally and there is no indication that there is any risk to passengers or staff."
A Securicor spokesman said he could not confirm which area the worker was from and which hospital he had been admitted to.
It was not known if the man was one of two who were in a critically ill condition in an Essex hospital after they were diagnosed with the disease.
The men, who are being treated at Princess Alexandra Hospital, Harlow, Essex, are from Essex and Hertfordshire.
PA