CHARLOTTE, N.C. -- A woman is begging the police to beef up security in her north Charlotte neighborhood after her granddaughter was shot in the knee at the family's yard Saturday evening.

Charlotte-Mecklenburg Police responded to a call of a shooting on Sunstone Drive. According to the girl's grandmother, the 6-year-old girl was just leaving a car and another vehicle pulled up to the neighborhood and proceeded to open fire at the girl.

NBC Charlotte's crew counted at least 12 bullet holes at the scene.

CMPD said the girl was transported by Medic to CMC Main with minor injuries. The girl's grandmother told NBC Charlotte her house had been shot at multiple times over the last six years.

"Been begging CMPD since the first time my house got shot up to put [a patrol car]," she said. "When are we going to get some help?"

"Over and over, I've begged," she said. "Who is going to help my grandchildren and my pets?"

Officials did not say if a suspect has been identified in the incident. CMPD is also investigating two separate shootings in north Charlotte. The first shooting, which took place minutes before the Sunstone Drive shooting, happened in the 2600 block of LaSalle Street. The other shooting happened in the 300 block of North Hoskins Road.

Authorities believe the two shootings are related but did not say if they are related to the Sunstone Drive shooting.

Stick with WCNC.com for the latest on this developing story.