Nancy Salem (above) was fired from her job as a preschool teacher in Arlington, Texas

A preschool teacher in Arlington, Texas, was fired from her job after it was learned that she posted anti-Semitic tweets urging her friend to 'kill some Jews,' according to media reports which emerged on Thursday.

Nancy Salem, who worked at the Children's Courtyard preschool in south Arlington, was accused of being a member of a pro-Palestinian organization viewed by some pro-Israel advocates as anti-Semitic.

Anyone browsing Salem's Twitter feed would have been shocked to discover a number of incendiary posts.

'Have a safe trip Lulu. I love you baby girl!' she tweeted to her friend who was apparently traveling to the Middle East in May 2013.

'Kiss the Palestine ground for me and kill some Jews!'

In another post, she re-tweeted a message that read: 'How many Jews died in the Holocaust? Not enough.'

Salem's social media posts, all of which have since been taken down, were unearthed in a report by a pro-Israel group, Canary Mission, according to the Dallas Morning News.

Canary Mission is an organization that keeps a database 'to document people and groups that are promoting hatred of the USA, Israel and the Jewish people, particularly on college campuses in North America.'

Its report focused on a number of former and current students who are members of the University of Texas-Arlington's chapter of Students for Justice in Palestine, a US-based pro-Palestinian campus activist group.

'Have a safe trip Lulu. I love you baby girl!' she tweeted to her friend who was apparently traveling to the Middle East in May 2013. 'Kiss the Palestine ground for me and kill some Jews!'

In another post, she re-tweeted a message that read: 'How many Jews died in the Holocaust? Not enough'

The Children's Courtyard, a preschool in South Arlington, is seen in the above photo. A spokesman said: 'The offensive comments certainly don't reflect our views. Our employees are expected to uphold certain standards of personal and professional conduct'

Canary Mission has accused SJP of being 'a focal point for campus anti-Semitism.'

The Israeli-Palestinian conflict has long ignited fierce debate on college campuses throughout the country.

The preschool released a statement this week explaining its decision for the dismissal.

'Providing a safe, nurturing and inclusive learning environment is of the utmost importance to us,' the statement said.

Salem was accused of being a member of Students for Justice in Palestine, a pro-Palestinian organization viewed by some pro-Israel advocates as anti-Semitic. SJP released a statement on its Facebook page above in which it disavowed anti-Semitism

SJP also denied claims that Salem was a member of its UTA chapter. It said that Salem was never even a student at the school

'The offensive comments certainly don't reflect our views. Our employees are expected to uphold certain standards of personal and professional conduct. Our senior leadership thoroughly investigated this matter. This person no longer works for our company.'

The SJP chapter at UTA also issued its own statement on its Facebook page condemning Salem and disavowing all expressions of anti-Semitism.

In its report on UTA, Canary Mission says that at least seven members of the SJP chapter have posted anti-Semitic tweets

Another Twitter user commented about someone having a 'Jew nose and a triangle face'

Canary Mission also unearthed an anti-Semitic meme featuring a mashup of Adolf Hitler and Adele. The tweet reads: 'Set fire to the Jews.' Underneath the caption is a photo of 'Adelef Hitler'

'SJP at UTA rejects all forms of discrimination against any marginalized groups, especially anti-Semitic rhetoric,' the group wrote on its Facebook page.

The group also denied Canary Mission's claim that Salem was a member of the group.

'Nancy Salem was NEVER a member of SJP, nor was she ever a student at UTA to begin with,' the group said.

'SJP has never had any members make any anti-Semitic [sic] statements, and if found any that did we would terminate their membership immediately.'

In its report on UTA, Canary Mission says that at least seven members of the SJP chapter have posted anti-Semitic tweets.

'I honestly don't feel sympathetic about the holocaust [sic]...#SorryNotSorry,' tweeted one woman said to be a member of SJP.

Another Twitter user commented about someone having a 'Jew nose and a triangle face.'

Canary Mission also unearthed an anti-Semitic meme featuring a mashup of Adolf Hitler and Adele.

The tweet reads: 'Set fire to the Jews.' Underneath the caption is a photo of 'Adelef Hitler.'