Several schools across the capital received bomb threats on Friday morning, police said.
Delhi Police teams along with fire personnel have rushed to the affected places to conduct thorough security checks.
The first call reported as a threat was received at 9.13 am by BD Tamil Education, Jhandewalan.
Further details are awaited.
Nine schools in the national capital had earlier received bomb threat emails on Monday, according to Delhi Police.
According to police, the threats were received via emails between 8.30am and 9am. Following the alerts, Delhi Police, fire brigade teams and bomb disposal squads were immediately rushed to the affected schools.
In South Delhi, three schools received bomb threats. These include Air Force School on Lodhi Road, KR Mangalam School and The Indian School in Sadiq Nagar.
Other schools that received bomb threat emails included Loreto Convent School in Delhi Cantt, Cambridge School in Srinivasanpuri, Venkateshwar School in Rohini, Cambridge School in New Friends Colony, CM School in Rohini, DTA School in INA and Bal Bharati School in Rohini.