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Archaeologists have announced the discovery of an ancient city in Peru's northern Barranca province.

The pursuit continued on and off the 10 Freeway and through local streets in West Covina until a collision with another vehicle at the intersection of Barranca Avenue and Garvey Avenue.

Deputy Samuel Aispuro, 43, was shot once in the back at about 2:45 p.m. on Monday at Barranca Street and East Garvey Avenue, authorities said.

Deputies are continuing to search for other suspects, who they believe were in a white vehicle with tinted windows, last seen headed westbound on the 10 Freeway from Barranca.

The westbound lanes of the 10 Freeway were closed in West Covina near Barranca Street, NBC4 reported.