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Indianapolis police confirmed at least eight people were killed following a mass shooting at a FedEx facility near the city’s airport on Thursday night. Multiple others were injured during the incident, according to officials.

Police said the gunman also died at the scene. Authorities describe him as a young male in his early 20’s, but they have yet to release his identification.

Police Chief Randal Taylor said investigators are trying to figure out a motive behind the killings. He also added a “significant” number of employees at the facility are members of the Sikh community.

Deputy Chief Craig McCartt gave an update early Friday morning, saying the shooter had no intended target before he opened fire in the company’s parking lot. He then entered the building and continued firing at people randomly. McCartt also added that the gunman killed himself shortly after police responded to the scene.

“There was no confrontation with anyone that was there,” he said. “There was no disturbance, there was no argument. He just appeared to randomly start shooting.”

McCartt said four people were killed in the parking lot, along with four others inside. Several people were also wounded, including five taken to local hospitals with critical injuries.

This becomes the latest incident in a string of gun violence throughout the nation.

On March 22, Ahmad Al Aliwi Al-Issa, 21, took the lives of 10 people at Boulder, Colorado grocery store. The heinous act in the foothills of the Rocky Mountains happened one week after Robert Aaron Long, 21, killed eight people in three separate shootings in Atlanta, Georgia.