NewsOne Featured Video

UPDATED: December 15, 2015 6:00 PM EST

The “credible” threat that closed all Los Angeles Unified School District campuses appeared to be a hoax, the LA Times reports.

In a statement Tuesday, Rep. Adam Schiff (D-Burbank) said an investigation to determine where the threat originated from and who was responsible was ongoing.

From the LA Times:

Another local congressman, Brad Sherman, said the person who sent an email threat to several Los Angeles Unified School board members claimed to be the victim of bullying and “an extremist Muslim who has teamed up with local jihadists” — although showed no real knowledge of Islam.

“There isn’t a person on the street who couldn’t have written this,” said Sherman, a senior member of the House Foreign Affairs Committee.

New York City officials also received the same email, but Mayor Bill de Blasio refused to shut down schools due to the note that he called “‘so generic, so outlandish’ that it would have been ‘a huge disservice'” to close campuses, the Times reports.

NYPD Deputy Commissioner Stephen P. Davis called it a “cut and paste job” with a few changes, such as the name of the city.

“It entailed so much detail and was so over the top with so many people involved in the conspiracy that it didn’t add up,” Davis said. 

The agency was working closely with the FBI and the LAPD, NYPD Commissioner William Bratton said. He added, “We cannot allow ourselves to raise levels of fear.”

An investigation continues.

Police in California have confirmed that all Los Angeles Unified School District schools were closed Tuesday morning due to a credible threat of violence to multiple campuses, the LA Times reports.

LAUSD has more than 900 schools serving 700,000 students. Authorities are planning a search operation of all campuses. According to LAUSD Superintendent Ramon Cortines, who called the threat “rare,” the district received an electronic notice that mentioned “backpacks and other objects.”

It is unclear when the threat was made and to which school board member, but the situation prompted the LAUSD to close all schools effective immediately, according to the Los Angeles School Police.

Students and staff were directed to stay away from all campuses.

The Los Angeles Police Department was assisting with the threat investigation.

According to Reuters, police in Los Angeles say the threat is still being analyzed. The FBI has been notified.

This is a developing story.