Hundreds of people were evacuated from a Jewish community center in Long Beach after someone phoned in a bomb threat Tuesday morning — one of several threats reported across the country on the same day.

The Alpert Jewish Community Center in the 3800 block of Willow Street received a call around 9 a.m. saying someone had planted explosives at the building, said Deborah Goldfarb, a spokesperson for the center.

Officials at the center called police and began evacuating about 300 people from the campus. The group included seniors and students at the center’s preschool, Goldfarb said.

Police arrived soon after and began searching the building with police dogs, according to Long Beach police spokeswoman Marlene Arrona.

Shortly before noon, police completed the sweep without finding any explosives, she said.

According to Goldfarb, the center has been keeping an eye on a recent increase in threats to similar organizations.

“There have been multiple threats at Jewish community centers across the country today,” she said.

Shortly before 9 a.m. in San Diego, a bomb threat forced the evacuation of the Lawrence Family Jewish Community Center in the University City area, according to San Diego police. Authorities searched the facility and gave an all-clear about 10:30 a.m..

Several other Jewish centers in Colorado, Connecticut, New Jersey, New York, Utah and Wisconsin were also evacuated due to similar threats, according to news reports.

It was the third spate of such threats this month.

On Jan. 18, bomb threats were made to 27 Jewish community centers in 17 states, according to the JCC Association of North America. The FBI launched an investigation after the first round of bogus threats affected 16 centers in nine states on Jan. 9.

The well-known local Jewish center in East Long Beach runs a host of programs for teenagers, children and seniors, including classes on Jewish life and a speaker series with Cal State Long Beach. City News Service contributed to this report.