(KRON) -- Two instances of gunfire in Berkeley on Thursday morning and a report of a car shooting on Friday morning is under investigation by the Berkeley Police Department. Authorities have not yet determined if the three shootings are related. Police first responded to a report of gunfire just after midnight Thursday on the 3100 block of Ellis Street. Officers did not locate any victims or suspects, authorities said, and it was later determined that the shooting occurred about a block away in the area of Woolsey and Harper streets. Suspect in homicide of Washington toddler arrested in Alameda More reports of gunfire came at 9:50 a.m. on Adeline Street, south of Fairview Street, according to Berkeley PD. Witnesses told officers that they saw a man with a face covering and dark clothing running away from the scene after the shooting. No victims were located. The police department said that both shootings remain under investigation. Berkeley PD confirmed to KRON4 on Friday afternoon that it is also investigating a third shooting. Police said officers responded to the intersection of Tunnel and Roble Roads on Friday at 6:59 a.m. to investigate a loud noise resembling a gunshot. Police said officers did a perimeter check of the scene but did not locate any victims or evidence tied to a shooting. Investigators said just over a half hour later, a victim contacted Berkeley PD to report that their car had been shot at while they were driving that morning on Tunnel Road. The victim told police they were unharmed, but that their vehicle had sustained damage from a gunshot. Police said they have not located any suspects in this third incident, and the case remains under investigation. Anyone with information on these incidents is asked to call Berkeley PD.