>>>wendy davis: shots ring out in reading on labor day... four people are rushed to the hospital after someone opens fire.
And... police say the victims were found over a three block span.
>>>wendy davis: tensions were high... as police combed a crime scene that stretched down moss street.
>>>rob vaughn: tonight... investigators are trying to piece together exactly what happened.
Wfmz's jim vasil is live at police headquarters with the latest.
3 >>jim vasil: wendy, rob, moss street was lined with people just moments after the shooting, you could see the concern on their faces.
Tonight, police have their work cut out for them.
Damon kloc "we have an enormous amount of work here to do this evening."
>>reporter shocked and worried residents flocked to moss street in reading on what ?was a lazy labor day evening.
Police are piecing together a shooting that left four injured-- two of them suffering serious injuries.
Damon kloc "we're doing a very extreme canvas that's stretching over multiple city blocks."
>>reporter police say it began in the 600 block of moss, where two victims were shot.
Then, they say bullets flew up and down the street, hitting one person in each of the 400 and 700 blocks.
>>nat >>reporter victims were stretchered away as neighbors stood by on pins and needles.>>nat siren >>reporter police say they've already brought witnesses down to city hall.
Right now, police are still looking for a suspect.
Damon kloc "it's going to take some time to kind of go through witness accounts to determine exactly what happened."
>>jim vasil: and police are also investigating a shooting that happened last night on 5th street.that shooting sent a man to the hospital.right now, police are not connecting that shooting