Chandigarh, April 7 -- Panic swept through Chandigarh on Monday morning after several schools, the Punjab and Haryana secretariat and the mayor's office received bomb threats via an email purportedly sent by an outfit called the Khalistan National Army.

The mails, however, turned out to be hoax, officials confirmed after an extensive sweep of the premises.

According to sources, the threatening emails were received around 9.21 am, naming several educational institutions including St Stephen's School, Shivalik Public School, and Ryan International School. The emails also mentioned the mayor's office and the UT secretariat as potential targets.

The emails reportedly outlined specific timings for the alleged blasts -1.11 pm for schools, 2....