Woman held after co-workers killed
A woman walked back into a food plant in the US minutes after she had been suspended and shot two people dead with a handgun.
A third person was critically injured at the Kraft Foods factory in Philadelphia, police said.
The woman was taken into custody.
She had been escorted out earlier but about 10 minutes later she returned in a car and drove through a security barrier before re-entering the building on foot and opening fire, said police.
The site produces biscuits and crackers.