Authorities in Sunnyvale said police officers thwarted an attempted smash-and-grab robbery at a jewelry store over Labor Day weekend.

According to the city's Department of Public Safety, officers responded to Nitin Jewelers on the 1100 block of West El Camino Real on Sunday on reports of a robbery in progress. Police said several suspects had attempted to break in with sledgehammers.

Crediting "proactive policing and technology", police said officers were on their way to the store before the 911 call was received. After seeing police, the suspects fled in multiple vehicles that officers said were stolen.

No items were stolen from the jewelry store, police said. Additional details about the incident or the suspects were not immediately available.

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