U.S. Sen. John Sununu's campaign manager has e-mailed supporters requesting a donation that will allow the campaign to buy more campaign signs.

Paul Collins, Sununu's campaign manager, told supporters that Sununu signs have been destroyed and defaced throughout the state.

"Perhaps frustrated by the failure of such tactics to stop the momentum of Team Sununu, opponents of Senator John Sununu have now turned to vandalism, graffiti, and theft," Collins wrote in an e-mail. "Thousands of dollars of Sununu signs across New Hampshire have been defaced, destroyed, or just disappeared."

The Shaheen campaign said they have nothing to the incident.

"Our campaign would never condone that kind of activity and it is disappointing that Sununu's campaign would immediately leap to this kind of desperate attack," said Kate Bedingfield, Shaheen's communications director.

The request for donations comes on the last day of the third-quarter fundraising period.