ORLANDO, Florida. – A gunman who opened fire during a Halloween street party that attracted thousands of costumed revelers. downtown Orlando killed two people and injured seven others early Friday, authorities said.

Police quickly arrested the suspect in the shooting, identified as Jaylen Dwayne Edgar, 17 years oldPolice Chief Eric Smith said during a briefing. Authorities have not yet determined a motive.

The gunman fired shots in the downtown Orlando bar and restaurant district around 1 a.m. Officers responded as costumed celebrants ran, and the same shooter then fired again about a block away, Smith said.

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The seven injured people, aged 19 to 39, were taken to a hospital and are in stable condition, Smith said. A tenth victim was treated after being trampled by the crowd as people fled.

One of the Halloween celebrants killed and another injured were students at the University of Central Florida, the school said in a statement Friday.

Authorities recovered a handgun at the scene of the arrest and have no other suspects, he said. Police announced later Friday that the 17-year-old had been charged with two counts of first-degree murder with a firearm and six counts of attempted first-degree murder with a firearm.

The Orlando Police Department is asking for the public’s help. If you have photos or videos from Friday morning’s shooting, OPD asks that you submit them as evidence. The process is simple:

1. Visit this link here.

2. Select “Submit Evidence”

3. Add your contact details.

4. Select “Send link” and you will receive a text with instructions on how to upload your photos and videos to our portal.

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