SANTA ANA ( — Santa Ana police Thursday conducted a two-hour crackdown on motorists who failed to yield to pedestrians.

Police issued 54 citations to drivers at Main and 15th streets and 33 at Main and Walnut streets between 8 and 10 a.m.

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The tickets were issued when motorists did not yield to undercover officers who were crossing the street at crosswalks, officials said.

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The crackdown was prompted after an 11-year-old girl was killed while crossing the street on the morning of July 24.

Alex Zuniga was struck and killed at Bristol Street near 10th Street. Her 8-year-old brother was hit and hospitalized in critical condition.

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