Imphal, May 21: Unidentified persons left a Chinese handgrenade at a room leased on rent by one Md Mansur Alam (40) s/o (L) Ahmad Ali of Hatta Mayai Leikai at around 5 am today.

The incident prompted a hurriedly organised protest demonstration cum meeting at the residential area during which demands were raised to those responsible for the act to clarify and disclose identity of the group/organisation they belong to.

A police team has retrieved the explosive device.

Meanwhile, Ideal Development Association, Golapati and United Club Organisation, Hatta Golapati strongly condemned the act.