Chandigarh, Dec 21 (Inditop.com) An elaborate mock drill carried out by the police in the city’s main commercial hub of Sector 17 Monday created panic among residents as sounds of blasts, firing from automatic weapons and blaring emergency sirens were heard.

As morning office-goers got down to work and shops were in the process of opening, the sound of blasts and gunfire broke the morning silence followed by an immediate police response.

Emergency alert sirens went off in different parts of the city followed by scores of ambulances and police vehicles coming in and out of Sector 17.