Two teenagers opened fire at a San Diego mosque on Monday, police said, killing at least three people. San Diego Police Chief Scott Wahl said the victims were adult males found just outside the Islamic Center of San Diego. One of them was a security guard, the New York Times reports. Police reported the threat "neutralized" around 1pm, about 90 minutes after the first report of gunshots, per NBC San Diego. The teenagers, 17 and 19, were found dead in a vehicle nearby of gunshot wounds that appeared to be self-inflicted, Wahl said in a press conference. The victims' names were not immediately released. The attack is being investigated as a hate crime, police said.