The Morning visuals from India Gate and Kartavya Path showed that a layer of smog had engulfed the areas, resulting in reduced visibility.

More than three fire engines and over 10 ambulances were deployed to rescue patients trapped inside the hospital in the Gandhi Nagar area near the Dindigul-Trichy highway, a senior official said.

A Delhi Fire Services official said, “We received calls (regarding the threat emails) from Bhatnagar International School in Paschim Vihar (4:21 am), Cambridge School in Shri Niwas Puri (6:23 am) and DPS Amar Colony in East of Kailash (6:35 am).”