Fire tenders rushed to the Indira Gandhi International (IGI) Airport here on Sunday after "radioactive substance" leaked from a medical shipment flown from France, which was later found to be within the permissible limit.
The leak was reported from the cargo area of T3 terminal.
The Atomic Energy Regulatory Board (AERB) has rushed its team to the spot.
"A call was received from the airport around 10.45 AM regarding suspected radioactive leak from medical equipment," said Atul Garg, Chief Fire Officer.
Garg said the equipment had come from Air France plane and was kept at the cargo terminal.
"We received a complaint from the airport authorities that Molybdenum-99 has leaked from some medical shipment from a cargo brought by an Air France plane," a senior fire official told IANS.
"The element, though not exactly a radioactive element, has some of its properties. We sent seven fire tenders. The situation is under control," the official said.
The leakage was later determined to be within permissible limits. BARC,NDRF officers cleared that there was no anticipation of any harm.
Flight operations at the Delhi airport are normal.
Delhi Police said the entire area had been cordoned off and the National Disaster Management Authority (NDMA) had been informed about the incident.
The cargo complex has been vacated by officials as a preventive measure. Teams have been rushed there alongwith a team of the National Disaster Management Authority.
There was no immediate response from Delhi airport authorities and Air France.