ATLANTA — Police worked Thursday to identify two white males who were caught on surveillance camera laying Confederate battle flags neatly on the ground near the Rev. Martin Luther King Jr.’s church.

It was the latest provocative act involving the Civil War-era symbol since nine black church members were gunned down during Bible study in South Carolina, and it happened in the heart of an area devoted to the slain civil rights leader, near his birthplace, his crypt and a center devoted to preserving his legacy.

Atlanta police Chief George Turner said his agency was working with federal authorities and they have not determined what charges might be levied. Turner said they have not ruled out a hate crime, though Georgia has no state hate crimes law.

An officer from the Atlanta FBI’s joint terrorism task force was on the scene “to better determine if any specific threats were received” and to provide support to Atlanta police, FBI Special Agent Steve Emmett said in an email.

The Rev. Raphael Warnock, senior pastor at Ebenezer Baptist Church, called placing the flags on church grounds a “terroristic threat.”