Dallas police responding to possible active shooter

DALLAS (AP) — Dallas police say officers are responding to a possible active shooter situation at an office building in the north of the city.
Police have provided no other details, including whether any shots have been fired or any injuries were reported in 911 calls Monday morning.
Television footage shows a heavy police response, including a SWAT team, at the multi-story office building along an interstate in northern Dallas.
A broken window can be seen on one of the upper floors.
Dalla