A Florida teenager's choice of prom dress has gone viral after she posted pictures of herself wearing a gown featuring images of 15 black people killed in police shootings.

Milan Bolden-Morris, 17, wore the Black Lives Matter-inspired dress to the Pahokee High School prom, telling CNN: "When someone loses a mother, father or child in unnecessary circumstances, it should not be overlooked but addressed."

She shared pictures of herself wearing the dress to her prom, writing: "Yes I'm black. Yes I'm 17. Yes GOD is using me to convey a message that's bigger than me. #AllLivesMatter❤️#BlackLivesMatter."

The black and white dress includes a large image of Trayvon Martin, who was shot dead on the way home from buying a can of soda by neighbourhood watch volunteer George Zimmerman in 2012.

Martin's death, and the subsequent acquittal of Zimmerman, prompted national outrage and protests – also sparking creation of the Black Lives Matter movement.

Bolden-Morris' dress also featured images of other African-American victims of police shootings including Sandra Bland and Michael Brown, and was designed by Terrence Torrence, also from Florida.

He told the news channel: "With all the killings that were going on, it just hit me one day: you should put that into a dress.

"I wanted to paint a picture and put a story out there through my fashion, and I wanted to show we could spread out message with not just posters and fliers but also with garments."