SAN ANTONIO (AP) – Two men were shot dead over the weekend by San Antonio officers.

Bexar County Sheriff Javier Salazar says deputies were making a routine traffic stop late Saturday when a man bolted from the car and tried to flee.

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During the foot chase, Salazar says the man is believed to have fired a gunshot at the pursuing deputy, drawing fatal return fire.

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In a separate incident, Police Chief William McManus says officers on drug patrol encountered a man sitting in his vehicle early Sunday. McManus says the man saw them approach, tried to flee, pulled a gun from his waistband and was shot dead.

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All three officers involved have been placed on administrative leave pending internal investigations.