Sussex volunteer firefighter Frank D'Amico was one of the first to responders to the scene of his 84-year-old father's hit-and-run crash at 6:40 a.m. Wednesday, TMJ4-TV reports. 

Camillo D'Amico, 84, is recovering at Community Memorial Hospital with severe injuries including broken ribs and a broken ankle. The accident occoured near the corner of Good Hope Road and Maple Avenue in someone's driveway, and when Frank D'Amico noticed it was his dad, shock took over.

"I looked at who they were working on, and I go, 'Oh my god, that's my dad,'" Frank D'Amico told TMJ4 reporters. "I was just so shook up -- I mean -- your worst nightmare."  

Apparently there are no witnesses of the accident, and Camillo D'Amico has no memory of what happened, so neighbors and family are hoping the driver turns himself in. Another driver found D'Amico sitting in the middle of the road after the suspect drove away, the Journal Sentinel is reporting. 

"I think it's pretty cowardly, and you have no conscience at all," Frank D'Amico told WISN. "I mean, to hit,  whoever hit him, they know they hit somebody. You don't hit an 85-year-old person walking with a cane and not know you hit something. You're a big coward."

Waukesha County Sheriff's Lt. Torin Misko says the hit-and-run is still under investigation, and his team is in desperate need of information.

"We are still following up on a couple leads, but we could definitely still use any information anyone has regarding the accident," Misko said. "The guy was 84-years-old, so he was banged up pretty bad."

Anyone with information on the accident should call the Waukesha County Sheriff's Department at 262-548-7122.