Hillary Clinton

Democratic presidential candidate Hillary Clinton is seen outside an early voting center in Miami on Saturday. Philadelphia Police report that laptops belonging to Clinton campaign workers were reported stolen in Philadelphia on Friday. (Associated Press/Andrew Harnik)

(Andrew Harnik)

PHILADELPHIA -- Three laptop computers belonging to workers on Hillary Clinton's presidential campaign were stolen from a car in Philadelphia, reports say.

The computers where taken Friday night, according to CBS3.com. They had been left by campaign workers in backpacks in a car and someone broke out a window of the vehicle to steal them, according to the report.

Philadelphia police Commissioner Richard Ross told Philly.com that the target vehicle was not marked as a car connected to the Clinton campaign.

Authorities believe the computers contain information connected to the campaign, including schedules, but Ross said police "have no reason to believe that were in possession of any sensitive information."

The U.S. Secret Service and Department of Homeland Security are working with Philadelphia police to retrieve them, according to the reports.

Bill Gallo Jr. may be reached at bgallo@njadvancemedia.com. Follow Bill Gallo Jr. on Twitter @bgallojr. Find NJ.com on Facebook.