Washington: A mass shooting occurred in Baltimore early on Sunday that left two people dead and 28 others injured, including three who are in critical condition, according to police. During a press conference at the scene, Baltimore Police Department Acting Commissioner Richard Worley confirmed there were a total of 30 victims. According to Worley, the shooting happened just after 2:30 a.m. at a block party in the 800 block of Gretna Avenue, in the Brooklyn Homes neighbourhood of South Baltimore. The victims were all grown people. Twenty victims with gunshot wounds walked into local hospitals, while nine were taken by ambulance, according to Worley. Also Read: Bangladesh Summons Swedish Ambassador Over Qur'an Burning in Stockholm At the scene, Mayor Brandon Scott said, "I want those who are responsible to hear me, and hear me very clearly. "We won't stop looking for you until we do, and we will. In the interim, I sincerely hope that every breath you take causes you to reflect on the lives you took and the lives you impacted here tonight. Also Read: Conflicts in Sudan escalate with no sign of a resolution No one was taken into custody right away after the shooting. Scott pleaded with anyone with information to come forward in order to help police find the "cowards" who carried out the shooting. Also Read: 'Critical condition' hospitalised Hannibal Qaddafi in Lebanon: TV Scott commanded, "Handle this as if it were your family." How you would want others to act if you were in mourning, if this was your neighbourhood, or if this had occurred at an event in your community. As Baltimoreans, we must treat one another in this manner, so we ask that you do.