DALLAS – The Dallas Police Department rushed to deal with an anonymous threat on Saturday afternoon.
While officers ran into the headquarters, members of the SWAT team secured a perimeter and searched a parking garage for a suspicious person.
There was a loud noise about 7:35 p.m. But there were no shots fired, police said. SWAT set off a device to enter a locked fence.
"Officers are planning to breach a lock door in the garage with a shot gun," a department spokesperson said on Twitter.
Police officers in helmets were carrying rifles. They reportedly completed their first search about 8:40 p.m., and did not find a suspicious person. They cleared the scene about 9 p.m.
Maj. Thomas Castro said since the shooting that killed five police officers two days ago, the department has received several threats. Sr. Cpl. Monica Cordoba said the measures taken were precautionary and were done in an "abundance of caution."
The swift reaction happened about 20 minutes after the department released a statement describing the robot used to kill Micah Xavier Johnson, the suspected gunman in the killing of five police officers. The robot was the Remotec, Model F-5, police said.
As the investigation continued, police said detectives interviewed some 200 police officers by Saturday afternoon. About a dozen police officers discharged their weapons, after Johnson shot at them, police said.
The federal agencies investigating the shooting were The Bureau of Alcohol, Tobacco, Firearms, and Explosives, Federal Bureau of Investigation, U.S. Marshals, Homeland Security Investigations and the Drug Enforcement Administration.
The local agencies involved were the Department of Public Safety, Texas Rangers, Dallas Area Rapid Transit, Dallas County District Attorney’s Office and the Dallas County Sheriff’s Department.