Two gunmen shot eleven police officers in Dallas, Texas, during a protest on Thursday, killing four officers and injuring seven others, police said. The death toll makes this one of the deadliest days for police in the history of American law enforcement.

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Source: ndtv.com

In a press conference earlier in the evening, Dallas Police Chief David Brown said in a statement two snipers shot 10 officers, three of whom were killed. Two officers were in surgery, one in critical condition. No suspects in custody. “An intensive search for suspects is currently underway,” Brown said. Officials also said four Dallas transit officers were shot but their condition was unknown.

Police later said in a statement that a suspect was is in custody and a “person of interest” had surrendered. They said a suspicious package was being secured by a bomb squad.

The Dallas Police has released a photo of a suspect.

https://twitter.com/DallasPD/status/751262719584575488

The shooting happened as largely peaceful protests unfolded around the United States after the shooting of Philando Castile, 32, by police near St. Paul, Minnesota, late on Wednesday. His girlfriend posted live video on the internet of the bloody scene minutes afterward, which was widely viewed.