PARIS (AFP) - A French anti-racism organisation on Tuesday filed an official complaint for discrimination after a company published a job ad online looking for a computer graphics designer who "if possible" is "not Jewish".

The job description, which was published Monday on specialised website www.graphic-jobs.com by graphic design agency NSL Studio and has since been removed, sparked a furore on the Internet.

The company has distanced itself from "the anti-Semitic comments that were published on Feb 2, 2015 on the site," it says on its website, where it also announced having filed a complaint so that a probe can determine "who is responsible for this publication".

"NSL Studio is an agency of integrity that does not discriminate," it said, adding that "the person in charge of the ad will be questioned, a probe launched and the necessary measures taken if it turns out that it really came from us."

NSL Studio had earlier said on its Twitter account that its job ad had been hacked.

SOS Racisme spokeswoman Aline Kremer said: "This is a proven case of public discrimination based on the real or supposed belonging to a race, ethnic group or religion, which is punishable by law." The organisation has filed a complaint against persons unknown until a probe determines exactly who is responsible.

The specialised jobs website, meanwhile, has apologised, saying its moderators had failed to notice the ad for around 35 minutes before it was deleted.