New Delhi, Aug. 20 -- A few days after several schools received bomb threats, over 50 schools have received another bomb threat mails in the national capital region in the early hours of Wednesday, police officials have informed.

According to Delhi police, a group identifying itself as 'Terrorizers 111' sent an email to various schools, including DAV public school, Faith academy, doon public school, Sarvodhaya vidyalaya, and others demanding USD 25,000. The same group had allegedly demanded USD 5,000 in cryptocurrency after sending various bomb threats on August 18.

The group sent a bulk email to the principals and administration staff of various schools, claiming that they have "breached their IT systems" and will detonate bombs within...