Marjory Stoneman Douglas High School in Parkland, about 45 miles (72 km) north of Miami, had been placed on a “code red” lockdown but had no information on how many people had been injured, a spokeswoman for the county sheriff’s office said. The sheriff’s office said on Twitter that the shooter was still at large.
The Miami Herald quoted a local fire chief as saying that at least one person had been killed in the attack.
Florida’s WSVN-TV reported 20 people may have been injured.
Live television showed dozens of students running and walking away from the school, weaving their way between law enforcement officers with heavy weapons and helmets, and large numbers of emergency vehicles including police cars, ambulances and fire trucks.
Local FOX-10 TV reported that five people were seen being treated by paramedics.
Florida Governor Rick Scott said on Twitter that had he had been in touch with local officials about the incident.
© Thomson Reuters 2018
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