Several schools in Punjab's Amritsar received hoax bomb threats via email on Friday, Additional Deputy Commissioner of Police (ADCP-2), Sirivennela said.
After two schools in the national capital received bomb threats earlier in the day, Sanskriti School also received a similar threatening email on Wednesday, which included references to the Khalistan movement.
The Indian School in New Delhi received a bomb threat via email on Wednesday. The school issued a notice to the parents immediately afterwards to collect the students as a precautionary measure.
Security forces have been on high alert since the Delhi blast near Red Fort, which has killed atleast 15 people. A day after the blasts, multiple courts in Delhi and schools received hoax bomb threats.
Coimbatore has seen multiple hoax bomb threats this month. This was the third such hoax call targeting various institutions, including the district collectorate, courts, and other public buildings.
AAP Convener Arvind Kejriwal and former Delhi CM slammed the ruling BJP government over repeated bomb threats received by the city's schools on Saturday.
Bomb threats were sent to Max hospitals at three of its locations in Shalimar Bagh, Saket, and Dwarka in the national capital, the Delhi Fire Service said on Saturday.