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Traffic along the 91 Freeway in the Fullerton area was fully reopened Tuesday afternoon after being shut down for several hours in both directions while authorities investigated the end of a pursuit and standoff that followed a string of deadly drive-by shootings that started in Los Angeles overnight.

Police arrived in the Orange County area shortly before 4 a.m. after chasing the suspected gunman who was driving in a white SUV from the L.A. area, where the shootings rang out just before 1 a.m.

The pursuit ended around 5:15 a.m. after the suspect apparently got into a shootout with police on the westbound side of the freeway above Raymond Avenue in Anaheim.

The eastbound side of the freeway, which was closed earlier Tuesday morning, was reopened around 8:30 a.m. But the westbound side of the 91 Freeway through the Anaheim area between Harbor Boulevard and Raymond Avenue remained closed for a good portion of the day before reopening shortly after 3 p.m.