After California State University Northridge was threatened with a mass shooting for the second time in less than a week, faculty members have been instructed to provide alternate examination formats for final exams that won't require students to be on campus Wednesday.

"Because student anxiety is high, which will affect their performance on finals, I have directed all faculty who have examinations on Dec. 12 to provide alternative examination options for their students that would not require students to be physically present on campus Wednesday, tomorrow, Dec. 12,'' CSUN President Dianne F. Harrison said at a news conference Tuesday. "Faculty will be communicating specifics of their plans with their students.''

The directive was issued in the wake of the latest threat incident, an expletive-filled letter that made the rounds on social media Tuesday morning. 

"I am writing this to inform the people of CSUN that I will kill everyone on the 12 of December 2018," the letter said.

"I am aware that I will probably (be) shot and killed, but before that happens, I'm killing as many (expletive) as I possibly can."

The person who wrote the letter said a student at Northridge Academy High School, which is adjacent to CSUN, would carry out a mass shooting at the school the same day. 

"He's gonna give bullys (sic) what they deserve, death," the letter stated.

The threat went on to say police won't be able to protect students and staff.

"The teachers and proffessors (sic) are surely going to (expletive) die for making students depressed and giving us (expletive) work that will never serve us good in life. You (expletive) are gonna bleed to death."

CSUN Police Chief Anne Glavin said the police department was notified of this latest threat at 10:44 p.m. Monday "by a CSUN student."

"He immediately got in touch with us when he found it -- turned it in to us -- which is exactly what we would hope to have happen,'' Glavin said. "And we have been investigating that ever since, throughout the night.''

Glavin said Los Angeles police are assisting with the investigation.

Last week, graffiti was discovered in a restroom at Sierra Hall that read, "Mass shooting in Sierra Hall 12/12/18."

There was a swastika written under the message. 

Sierra Hall is home to the school's Psychology Department.

In response to the threats, the school's president said there would be an increased police presence on campus throughout finals week.

The continued threats against the University inspired the creation of a change.org petition calling for the campus to be closed Wednesday. The petition has generated over 10,000 signatures.

Fall semester finals at CSUN begin Wednesday, Dec. 12.

City News Service contributed to this report.