A suspected gunman who launched an early-morning attack on Dallas police headquarters has been shot dead, the Associated Press reports.

Police spokesman Maj. Max Geron confirmed the death on Twitter.

Dallas Police Chief David Brown told a press conference earlier that a police sniper had shot the man following a tense standoff with police. He said no officers were injured.

AP reports that a gunman began firing on the police headquarters near downtown Dallas around 12.30am on Saturday morning, before fleeing in an armored van and ramming a police car.

A SWAT team cornered the van at a nearby suburban parking lot, and a man inside identified himself as James Boulware and claimed he had explosives. The man said he blamed police for “accusing him of being a terrorist”, causing him to lose custody of his son.

Brown said a package containing pipe bombs was found near the headquarters building.

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