JUST IN: Shots fired from armored van at Dallas police headquarters

Armored van lured police, fired upon, and rammed police pic.twitter.com/luf2U1SMje

— Madhu (@madwho12) June 13, 2015

A police source has confirmed that someone in an armored van fired shots at Dallas police headquarters early Saturday, prompting a pursuit involving dozens of police vehicles.

The gunman has been cornered in the van along Interstate 45 near Hutchins after more shots were fired at that location.

Police apparently are negotiating with the gunman, but there are reports he has threatened that the van is carrying explosives.

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