A man approached the news vehicle and opened fire, then walked to a nearby home and shot a mother and daughter, witnesses say
ORLANDO, Fl. -- A Florida TV news crew became part of the story they were covering in Orlando Wednesday after they were shot while at the scene.
An Orlando television reporter is among three killed in a shooting spree in Pine Hills Wednesday while covering one of the shootings, police said
Orange County Sheriff John Mina said during a news conference that the employees worked for Spectrum News 13.
The Orange County Sheriff's Office said earlier on Twitter that one person was in custody.
Keith Melvin Moses, 19, has been arrested and charged with murder in connection to a shooting Wednesday morning, Mina said. Moses is expected to be charged in four other shootings that occurred later in the day, including the killing of the Spectrum News 13 journalist, Mina added.
The sheriff said Moses has a lengthy criminal history that includes gun charges, aggravated assault, aggravated battery and assault with a deadly weapon.
Mina said deputies responded to the 6100 block of Hialeah Street around 11 a.m. Wednesday where they located a woman in her 20s who was shot and died from her injuries.
WATCH | Officials give update after TV news crew shot while reporting at scene of earlier crime
Detectives responded and collected evidence, he said.
Mina said police do not know why the suspect allegedly targeted the two journalists and the mother and daughter who were shot.
"At 4:05, we received 911 calls about another shooting at that location and a shooting nearby," Mina said.
Mina said the two journalists -- a photographer and reporter -- were on the scene to cover the homicide that morning and were shot in or around their vehicle.
"That vehicle was almost exactly in the same spot as the vehicle was from the homicide this morning. So it's unclear why exactly they were targeted. And you know certainly we're going to look into that, and we will definitely let you know," Mina said.
The sheriff said "the vehicle didn't look like a typical news vehicle with a lot of markings on it."
Shortly after that shooting, police went to the scene of a third shooting and found a woman on Harrington Street and her 9-year-old daughter were also shot inside of a home. The 9-year old has died, the sheriff said.
The victims were rushed to Orlando Regional Medical Center. The surviving crew member and the mother are in critical condition, CNN reported.
"I want to acknowledge what a horrible day this has been for our community and our media partners," Mina told media members at news conference.
The sheriff said it is unclear why the suspect entered that home.
"It is with deep sadness that @RTDNA learns of the death of a @MyNews13 journalist in Orlando," Radio Television Digital News Association CEO Dan Shelley tweeted. "He was 1 of 2 of the station's journalists shot covering a previous crime in a residential area. Sending thoughts of peace and comfort to their families, friends & the other victims."
Spectrum News 13 is not yet identifying the crew members who were involved in the shooting, according to a story on the TV station's website.
"We are deeply saddened by the loss of our colleague and the other lives senselessly taken today. Our thoughts are with our employee's family, friends and co-workers during this very difficult time. We remain hopeful that our other colleague who was injured makes a full recovery. This is a terrible tragedy for the Orlando community," Spectrum News said in a statement.
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ABC News contributed to this post.