Arabic sites are talking about a European taxi company that has put anti-Israel messages on its fleet:
It includes a decal with an Israeli flag dripping blood and another with a "universal no" symbol slashing through an Israeli flag.
An indirect mention of the story I found on Facebook indicates this is happening in Holland.
UPDATE: Eric and Suzanne in the comments say that it was only a single driver, the message has been removed and the company apologized.
It is noteworthy that the way the Arab sites are framing this is in terms of "Arab nations would never do this - we are not as pro-Palestinian as Europeans are!"