A rosary is draped over a portrait of 17-year-old Jessica Hernandez in her Thornton, Colo., home on Wednesday, Jan. 28, 2015. The teenager was killed after she allegedly hit and injured a Denver Police Department officer while driving a stolen vehicle in northeast Denver alleyway.

(AP Photo/David Zalubowski)

Minority activist groups delivered more than 19,000 signed petitions Thursday calling on the U.S. Department of Justice to investigate the Denver Police Department for the fatal shooting of 17-year-old Jessica Hernandez in January. 

The department says Hernandez injured an officer with a stolen car on Jan. 26. Mariana Ruiz, with Presente.org, the organization that gathered the signatures from across the country, says the use of force by officers was unwarranted and the case must be investigated.

"This isn’t one shooting, this isn’t two shootings, this isn’t even the four shooting that have made national headlines this year," Ruiz said. "This is an ongoing problem of police that are not being held accountable and they need to be held accountable for their actions.”

Following delivery of the petitions to an FBI field office in east Denver, organizers held a vigil for Hernandez at the location where she was killed. 

The officers involved in the shooting have been placed on administrative leave which is standard procedure in officer involved shootings.