The presence of a bulldozer in the photo alarmed officers, because the vehicles have been used in hit-and-run terrorist attacks.

Mr Khalawi was questioned but released hours later.
Haaretz explained that the error was down to Facebook using a transliterating service – meaning a translation of individual corresponding letters – rather than translating whole words of phrases.
The police confirmed to the newspaper that it had mistakenly arrested Mr Khalawi, and agreed that he posted “good morning”.
The Facebook post has now been removed.