KENNEBUNKPORT – Security was increased at Former President George H.W. Bush’s Walker’s Point estate following Tuesday’s terrorist attack, though the elder Bush was not home.

“Agents are in a heightened condition here at Walker’s Point,” said Tom Frechette, a spokesman for the former president. “All is calm here.”

Frechette said the former president was not at the house.

Bush, on his way to a speech in Minnesota, was grounded in Wisconsin on Tuesday when federal officials cleared the skies after the East Coast terrorist attacks, his son Florida Gov. Jeb Bush said.

“I think that’s where he still is, like a lot of people across the country, until air service begins again,” Jeb Bush said Tuesday in a news conference in Tallahassee, Fla.

Former President Bush was scheduled to be in Maine on Friday, when he was to take a two-hour cruise aboard the USS Howard, a Bath Iron Works destroyer scheduled to make its maiden voyage to Newport, R.I. It was unclear Tuesday whether that cruise would still take place.

Local police took no special precautions to guard the house. But they did check in with the Secret Service to make sure none was needed.

“I called over there just to obtain the status of what was going on,” said Kennebunkport Police Lt. Joseph Bruni.

In neighboring Biddeford, some residents expressed concerns that the Bush house might be next on the terrorists’ list. “A lot of people are wondering, is Kennebunkport a target?” said Brian McLaughlin, eating at The Office Deli and Pub on Washington Street.

The three-story, stone-and-shingle home at Walker’s Point has been in the Bush family since the turn of the century.

The former president has spent every summer there since boyhood, except when he served as a Navy aviator in World War II.

His son President George W. Bush visited the compound over the Fourth of July weekend.