The suspect is in custody, the Broward County Sheriff's Office said.
17 victims in total were taken to two hospitals in the Broward County health system, according to Dr. Evan Boyar. He is a 19-year-old former student, who had a troubled history and was expelled from the school, Sheriff Israel said. He was checked out at a hospital and taken to a secure location. Marco Rubio of Florida said on Twitter.
So far we have at least 14 victims.
Photos shared by the AP show students being escorted from the school by police, and anxious parents waiting to pick up their children.
Broward County Superintendent says it appears to be the deadliest school shooting in Broward County's history. "It is a horrific situation". SWAT teams were seen entering the school campus with police canines.
"We have already begun to dissect his websites and social media that he was on", Sheriff Scott Israel said at a news conference Wednesday evening, "and some of the things that have come [up] are very, very disturbing". "I'm fine", but sent another text shortly afterward saying, "Mom, I'm so scared". The girl was later able to escape the school unharmed. "No child, teacher or anyone else should ever feel unsafe in an American school", he tweeted.
The daily White House press briefing originally scheduled for 4:30 p.m. was canceled due to the incident. The homeland security secretary has also been in touch with state and local officials.
"My thoughts and prayers are with the students, their families and the entire community".
Anna Cecilia Girao was in a class at Marjory Stoneman Douglas High School in Parkland with about 15 other students when the shooting started. "They were very close", Baltzer said.