DALLAS POLICE DEPARTMENT ON HIGH ALERT AFTER A RUMOURED MASKED MAN WAS SEEN IN THE BUILDING.

There were reports that Dallas Police Headquarters was on lock down due to a masked person seen entering the building.
However, Dallas Police Department through their twitter account has debunked that claim.
They said they searched the parking garage looking for a suspicious person based on a tip they received but that the building was not on lockdown as speculated.