Update: The BBC has amended their original story, now calling the incident in India a "shooting scare."
The police force in charge of security at Delhi's main airport has denied reports that people have been shot and injured there.
Police are investigating "two sharp sounds that were heard at the airport", the force told the BBC's Delhi bureau.
Earlier, airport officials said shots had been fired, and that several gunmen had been killed or injured.
Security has been strengthened at Indian airports after warnings of possible attacks.