Teacher at Florida shooting school arrested after leaving gun in toilet

File image of a gun.

A teacher at the Florida school where 17 people were shot dead has been arrested after authorities said he left a loaded gun in a public toilet, where a drunk homeless man picked it up and fired it.

No-one was injured but chemistry teacher Sean Simpson, from Marjory Stoneman Douglas High School, has been charged with failing to safely store his weapon.

Simpson, who carries a concealed weapons permit, left his Glock 9mm in a toilet at the Deerfield Beach Pier on Sunday, a Broward Sheriff's report said.

The 43-year-old told deputies he was returning to get it when he heard a gunshot, and found the man holding the gun.

Records show the teacher posted $250 bail.

- Press Association

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