The Central Bureau of Investigation (CBI) registered six cases and set up a Special Investigation Team (SIT) to investigate Manipur violence, CBI officials said on Friday. On Thursday, two bike-borne miscreants allegedly hurled a low-intensity Improvised explosive device (IED) at the gate of MLA Soraisam Kebi’s residence, police said. “There were no casualties in the incident. Except for a few holes in the ground, the blast did not cause any major damage,” an officer said. According to the Manipur Police, the two bikers hurled and blew an IED at the residence of Naoriya Pakhanglakpa MLA, Soraisam Kebi, in the Imphal West hamlet of Ningthemcha Karong. An IED is a bomb assembled in an improvised manner incorporating destructive, lethal, noxious, pyrotechnic, or incendiary chemicals and designed to destroy or incapacitate personnel or vehicles. In some cases, IEDs are used to distract, disrupt, or delay an opposing force, facilitating another type of attack.