Dallas police on heightened alert due to a new threat
Screenshot via CNN
Dallas police launched a search near its headquarters after receiving an anonymous threat on Saturday.
"The Dallas Police Department received an anonymous threat against law enforcement across the city and has taken precautionary measures" to heighten security, Dallas police said in an emailed statement to Reuters.
Police conducted a search at a department parking garage, but found no suspects, the department tweeted.
Earlier, Dallas Police said that officers were searching the police parking garage for a "suspicious person."
The Dallas Morning News also noted that the sight of a masked man prompted police to go on heightened alert.
Dallas police Sgt. Warren Mitchell told Dallas Morning News reporter Naomi Martin that no shots have been fired.
Here's some video from the area:
Police in Dallas are still reeling from a massive sniper ambush in which a lone gunman killed five officers and wounded seven others on Thursday. It was the largest loss of life by a police department since the September 11, 2001 attacks.
Police officers were also attacked in Georgia and Missouri on Friday.