Several schools in Gurugram on Wednesday received yet another bomb threat via email.Schools immediately implemented emergency protocols upon receiving the mail. Many schools declared a holiday and sent messages to parents, asking them to take their children home. Large crowds of parents gathered outside the schools. Police and bomb squad teams also arrived to investigate.The emails were sent to Shri Ram, Amity and the HDFC School at 8.33 am. Students had already begun arriving and classes had started by then.“Around 10 schools approached the police today as they received bomb threat mails. Our police teams are searching the premises,” said a senior police officer.