Staff members at Parkland where Nikolas Cruz killed 17 are removed after failing to stop the rampage

Three assistant principals and a security chief have been axed over failures to prevent the Parkland mass shooting which saw 17 people massacred.

The staff at Marjory Stoneman Douglas High School in Florida are being reassigned over failings in the way the shooting was handled.

The Stoneman Douglas Commission cited a number of failures in school security procedure as well as missed opportunities to stop the killer, Nikolas Cruz, after he was seen searching guns on a school computer.

Toilet doors being glued shut and a lack of 'hard corners' meant students had fewer options to to safely hide as the gunman shot pupils and staff.

President Trump also intervened shortly after, calling sheriff's deputy, Scot Peterson, who was assigned as campus security, a coward for not going inside the building as the shooter roamed the school halls.

A number of failures by the school or district were raised by the commission, including communication breakdowns between police and school staff during the massacre on February 14.

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