Congresswoman Carolyn Maloney, center, member of Congress's bipartisan task force combating anti-Semitism, speaks with a reporter after holding a press conference to address bomb treats against Jewish organizations and vandalism at Jewish cemeteries, Friday March 3, 2017, at the Park East Synagogue in New York. (AP Photo/Bebeto Matthews)
Congresswoman Carolyn Maloney, center, member of Congress's bipartisan task force combating anti-Semitism, speaks with a reporter after holding a press conference to address bomb treats against Jewish organizations and vandalism at Jewish cemeteries, Friday March 3, 2017, at the Park East Synagogue in New York. (AP Photo/Bebeto Matthews) Credit: Bebeto Matthews

Authorities investigating recent bomb threats against Jewish institutions nationwide arrested a former journalist Friday morning and said he was behind at least some of the threats, describing them as part of the man’s campaign to harass a woman.

The arrest in St. Louis appears to be the first made in response to a recent wave of bomb threats at Jewish centers and schools across the country in recent days. Headstones also have been vandalized at Jewish cemeteries in Missouri, Pennsylvania and, most recently, upstate New York.

But officials said on Friday that they don’t believe the man — Juan Thompson, 31 — was behind all of the calls or the vandalism.

The bomb threats against Jewish centers and schools in January and February — including another string of such calls on Monday that evacuated schools in Maryland and Virginia, among other places — brought the total number of incidents to 100 across dozens of states, according to the Jewish Community Center Association of North America. The threatening behavior, arriving at a time of increased anxiety about anti-Semitism, has prompted frenzied evacuations and forced people to scramble from schools, offices and daycare facilities, sometimes pushing cribs carrying young children.

Last month, a bomb threat was called in to the Anti-Defamation League’s headquarters in New York. Police said that a search did not turn up a bomb.

The FBI arrested Thompson on Friday morning in St. Louis, according to the U.S. Attorney’s Office in the Southern District of New York.

Thompson is a journalist who was fired from the Intercept, an investigative journalism website, for fabricating quotes and misleading colleagues to cover his tracks.

In an editor’s note last year, the publication said Thompson had engaged in “a pattern of deception” and wrote that he created fake email accounts to impersonate people.