A gunman has opened fire inside an American high school, with reports of “numerous fatalities” and more than 20 injured.
Helicopter footage shows that police in Broward County, Florida, have arrested one man, the Sydney Morning Herald reports, after Marjory Stoneman Douglas High School, Parkland, went into a “code red” lockdown.
Local police force Coral Springs Police kept students and parents updated via Twitter, as did many of the students barricaded inside:
Students were seen exiting the building with hands raised above their heads, 7 News reorts, with others being taken directly to ambulances.
The FBI is responding to the incident.