Authorities in Broward County, Fla., say SWAT team members are on the scene at Marjory Stoneman Douglas High School in the town of Parkland after reports of an active shooter on campus. Parkland is northwest of Ft. Lauderdale.
The school is locked down as some students have been escorted outside while others are being advised to remain barricaded inside.
Broward County Public Schools and the sheriff's office report "possible multiple injuries."
Authorities have not determined a motive for the shooting.