India, June 19 -- Security measures were stepped up at Bengaluru's Kempegowda International Airport after an email warning of bombs on the premises triggered an alert late Wednesday night, officials said on Thursday.

According to police sources cited by PTI, the threat email, sent in the name of a terrorist, claimed that two bombs had been planted - one under "Plan A" and another as "Plan B" in case the first failed. The message also alleged that an explosive device had been placed inside a pipeline in one of the Bengaluru airport toilets.

Following the alert, security agencies launched a comprehensive inspection of the airport. After a thorough search, authorities confirmed that no explosives were found and declared the threat a hoax....