Grand Prairie police are scouring an office building at 2080 N. Highway 360 after someone opened fire inside Tuesday afternoon.
Police have ordered those inside to lock their doors and stay where they are. HD Chopper 8 captured at least one person being removed from the building and taken by ambulance to a hospital.
Officers are also on top of the roof with rifles drawn. This is a developing story, we'll post more information as we learn it.
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