Security has been stepped up at India's airport after attack warnings
There has been a major security alert at Delhi's main international airport.
The BBC initially quoted an incorrect claim from an airport worker that six people had been shot and killed at Indira Gandhi International Airport.
But the Indian authorities have since denied that there was any shooting incident at the airport.
Airline passengers are said to have panicked and mistakenly reported that shots were being fired after two loud noises were heard.
Tensions have been high in India since last week's shooting spree in Mumbai left nearly 200 people dead.
Indian airports have been on heightened alert after a threat of more attacks by the Deccan Mujahideen, the previously unknown militant group which claimed responsibility for the Mumbai attacks.