The local sheriff's office said the suspected shooter was in custody

Officials say 17 people were killed in a shooting at a high school in south Florida.

The suspected shooter - a 19-year-old man - has been taken into custody.

The Broward Sheriff's Office initially responded to reports of an active gunman in the city of Parkland.

In a statement on social media, police initially said there were reports of 'multiple victims'.

Sheriff Scott Israel later confirmed that 17 people had died.

Local schools superintendent Robert Runchie had earlier confirmed to reporters there were numerous fatalities, in what he described as an 'horrific situation'.

Footage from local media showed students being evacuated from Stoneman Douglas High, with deputies surrounding the building.

President Trump said his 'prayers and condolences' were with the families of the victims.