Jewish Columbia professor Shai Davidai is blocked from campus and has his pass deactivated after plotting a counter 'sit in' next to pro-Palestine protesters

A Jewish Columbia professor has been blocked from campus after he created a pro-Israel demonstration to counter the student-led Gaza encampment.

Shai Davidai, an assistant professor at the Business School was shown on camera in a fiery face-off with pro-Palestine students on Monday morning. 

A source told DailyMail.com Davidai's employee card was deactivated after he refused to hold his counter-protest in the designated area and instead staged it beside the pro-Gaza demonstration. 

Footage shows him remonstrating with security guards at the campus gates before climbing onto a small wall and addressing protesters.    

'They have deactivated my card, they are not letting me on campus,' Davidai says. 'I have not just a civil right as a Jewish person to be on campus, I have a right as a professor employed by the university to be on campus.' 

Jewish Columbia professor Shai Davidai (pictured) has been blocked from campus after he created a pro-Israel demonstration to counter the student-led Gaza encampment

Columbia university has cancelled all in-person classes on Monday amid escalating anti-Israel protests that have sparked fear in Jewish students 

Video from last week shows pro-Palestine and pro-Israel demonstrators clashing outside of the school as one woman screams, 'We are Hamas!'

His protest was greeted by shouts of 'Let Shai in' from supporters and 'shame on you' from pro-Palestine protesters who initially tried to drown him out. 

In another demonstration held in a green space on Sunday, Davidai called the Gaza encampment 'open support for Hamas'.

It comes after Columbia University canceled all in-person classes amid escalating anti-Israel protests that have sparked fear in Jewish students - and a warning from a rabbi.

President Minouche Shafik on Monday said she was 'saddened' by the situation and that the school 'needed a reset'. 

'I understand that many are experiencing deep moral distress and want Columbia to help alleviate this by taking action,' she said.  

'We should be having serious conversations about how Columbia can contribute.'

The Egyptian-born academic added that tensions have been 'exploited and amplified by individuals who are not affiliated with Columbia', warning they are pursuing their own agenda.

Last week, the school's rabbi warned Jewish students not to return to campus amid a horrifying spike in 'extreme anti-Semitism.'

Shai Davidai, an assistant professor at the Business School was caught on camera in a fiery face-off with pro-Palestine students on Monday morning

In an email to students announcing virtual learning for Monday, Columbia president Minouche Shafik said the school 'needed a reset' following the chaos on campus

Rabbi Elie Buechler of the Columbia/Barnard Hillel issued the grim warning to students on Sunday morning

Buechler encouraged students to consider staying home, writing, 'It is not our job as Jews to ensure our own safety on campus'

The NYPD removed an encampment at the college on Thursday and arrested more than 100 demonstrators, including the daughter of Ilhan Omar.

Democratic Mayor Eric Adams previously said the city was asked in writing by university officials to remove the encampment. 

'Students have a right to free speech, but do not have a right to violate university policies and disrupt learning on campus,' Adams said on Sunday night.

'I am horrified and disgusted with the antisemitism being spewed at and around the Columbia University campus.

'Hate has no place in our city, and I have instructed the NYPD to investigate any violation of law they receive a report about and will arrest anyone found to be breaking the law,' Adams said on Sunday night.

'I do, however, want to be abundantly clear: Columbia University is a private institution on private property, which means the NYPD cannot have a presence on campus unless specifically requested by senior university officials.

Isra Hirsi, the daughter of left-wing Congresswoman Ilhan Omar , says she's has nowhere to live or eat after being suspended for participating in anti-Israel protests at Columbia University 

Hirsi (pictured right with her mother), 21, was part of a now days-long protest in support of Palestine that has drawn heavy condemnation from both sides of the political spectrum, including the White House

'For the safety of all New Yorkers, I urge Columbia's senior administration officials to improve and maintain an open line of communication with the NYPD to ensure the safety of all students and staff on campus.

'The NYPD has an increased presence of officers situated around the campus to protect students and all New Yorkers on public streets, and they stand ready to respond if a request is made by the university, like was done this past Thursday.' 

The students had been protesting on campus since early Wednesday, opposing Israeli military action in Gaza and demanding the school divest from companies they claim 'profit from Israeli apartheid.'