Bomb threat email to Delhi Mayor’s office triggers security sweep at Red FortA bomb threat email sent to the Delhi Mayor's office prompted security agencies to conduct an extensive search operation at the Red Fort ahead of Independence Day celebrations. As soon as the Mayor’s office received the bomb threat by email, it alerted the Delhi Police and other security agencies. Delhi Police sources said that after receiving the information about the bomb threat, the security of the area was beefed up and an investigation was launched. A similar bomb threat targeting the Red Fort triggered a major security response on July 11, prompting police and security agencies to conduct a comprehensive combing exercise at the monument before declaring the threat to be a hoax. Prime Minister Narendra Modi will address the nation from the ramparts of the Red Fort on August 15 as the nation celebrates its 80th Independence Day.