Journalist Lou Dobbs says gunshots were fired at his New Jersey home this month after a series of threatening phone calls to his residence.

The CNN Host of "the Lou Dobbs Show" told listeners on his nationally syndicated radio show that he believes the incident is related to his outspoken views on immigration. Dobbs is a fervent proponent of U.S. border enforcement.

"They've created an atmosphere and they've been unrelenting in their propaganda," Dobbs said in reference to pro-immigration groups.

"Three weeks ago this morning, a shot was fired at my house where I live. My wife was standing outside and that followed weeks and weeks of threatening phone calls."

New Jersey State Police told media outlets that troopers were called to the Dobbs' estate in Wantage, N.J., at about 10:30 a.m. on Oct. 5.

Investigators at the scene were told that Dobbs and his wife were outside their home when they heard a gunshot, and a bullet struck their attic. The bullet was located and is being analyzed, law enforcement officials said.

No injuries were reported and police said an investigation is under way.