New Delhi, July 18 -- More than 20 schools in Delhi have received bomb threats via emails, officials said on Friday. According to the police, the Richmond Global School in Delhi's Paschim Vihar area has reported getting a bomb threat.

The fire department and Delhi police rushed to the spot after receiving information about the bomb threats, the Department of Delhi Fire Services said. Further investigation is underway.

This comes days after nearly ten schools and one college in the national capital received bomb threats via email over the last three days, prompting police action and temporary closures.

According to the Police the bomb threat letter said, " Hello. I am writing to let you know that I have placed several explosive devices ...