Google has told attorney general in the U.S. state of Connecticut that it will not comply with his demand to view data collected through the company's Street View cars, U.S. media reported on Friday.

The state is threatening further legal action against Google in the wake of the company's decision, Silicon Valley's San Jose Mercury News said in a report.

"I am disappointed by Google's failure to comply with my information demands," Richard Blumenthal, Connecticut's attorney general, said in a statement quoted by the newspaper.

"We will review any information we receive and consider whether additional enforcement steps -- including possible legal action -- are warranted," he added.

Blumenthal last Friday issued a civil investigative demand, which is equivalent to a subpoena, to Google, compelling the company to provide access to data improperly collected by its Street View cars.

Dec. 17 was the deadline for Google to comply with the demand.

According to Blumenthal's office, Google in 2008 collected data from unsecured Connecticut personal and business wireless computer networks while the company's cars trolled streets in the state, taking photographs for its Street View service.

"Access to information Google improperly collected from unsecured wireless computer networks may be needed to prevent a repeat," Blumenthal said in the statement.

"Google's story has changed from claiming it only collected fragments to acknowledging possible capture of full e-mails, making review of the data even more urgent," he noted.