The hoax call Friday comes close on the heels of a series of hoax bomb calls that had sent the police into a tizzy earlier this wee.

A hoax call threatening to blow up the Municipal Corporation of Delhi (MCD) headquarters was received Wednesday morning.

Calls warning of bomb blasts had Tuesday affected two busy Delhi Metro stations, two hospitals and three government buildings, including the MCD headquarters. However, in the end, they all turned out to be one big hoax.

The police had Wednesday detained one person whom they suspect had made the hoax calls Tuesday.