Pop star Beyoncé has demanded justice for a black woman killed by police in a letter to the attorney general in the US state of Kentucky.

Axar.az reports citing foreign media.

The singer urged Kentucky Attorney General Daniel Cameron to bring charges against the three officers involved in Breonna Taylor's killing.

Ms Taylor, 26, was shot eight times while she slept when officers entered her home in Louisville on 13 March.

They were executing a no-knock search warrant as part of a drugs raid.

A no-knock warrant is a search warrant approved by a judge that permits police to enter a home without permission.

Inside, the officers exchanged fire with Ms Taylor's partner, who believed the raid was a home invasion, but no drugs were found.