NEW YORK (AP) -- Police say six people wounded in a shooting outside the Empire State Building have been treated at a hospital and released.

The New York Police Department says three other victims are being treated for non-life-threatening injuries. One of them is being treated for elevated blood pressure.

A laid-off clothing designer fatally shot a former colleague near the skyscraper Friday morning. He then was shot dead by police officers during a confrontation that wounded the nine bystanders, who suffered graze wounds or other minor injuries.

Dramatic surveillance video shows the confrontation lasted only a few seconds. Police say the officers responded appropriately when shooter Jeffrey Johnson pointed his gun at them.

Police have said some of the nine people who were wounded were likely hit by police bullets. They suffered graze wounds or other minor injuries, and police believe at least some of the injuries were caused by bullet fragments that ricocheted off security planters.

The officers had opened fire on a man who had just shot and killed a former co-worker at a business where the gunman had been laid off from his work as a women's accessories designer.

Authorities say the gunman, identified as Jeffrey Johnson, wore a suit and carried a briefcase as he walked up to the vice president of the import company, Steven Ercolino, put a gun to his head and fired without saying a word. A witness told investigators that after Ercolino fell to the sidewalk, Johnson stood over him and shot him four more times.

A construction worker who saw the shooting followed Johnson and pointed him out to officers.

There are conflicting accounts of whether Johnson then fired at the officers or just pointed a gun at them before he was shot and killed.