The Dallas Police Department Twitter feed lays out the details of an attack at the DPD that began overnight, and a standoff with a suspect or suspects in what’s described as an armored vehicle continues this morning:

Police detonated explosive devices that had been left in the parking lot outside the PD:

A suspect reportedly blamed police for his child being taken away:

Video as the attack unfolded:

Updates:

The Dallas PD has now confirmed that the suspect is dead:

Editor’s note: This post has been updated to include additional information, and the title has been amended to indicate that it is unknown if there is more than one suspect involved.