A black pickup truck appeared to hit a police officer in Philadelphia as unrest escalated in the Pennsylvania city following the shooting death of Walter Wallace Jr.. Wallace, shot earlier in the day as he was rushing at officers with a knife.

Dozens of officers were injured with rocks, bricks and other projectiles and this 56-year-old female officer, hit by a pickup truck and hospitalized with a broken leg,

Several businesses were looted and more than 30 people were arrested on charges including looting, rioting, and assaulting officers

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