Scotttish Lib Dem leader Willie Rennie has apologised for an online cartoon portraying Alex Salmond in Arabic dress.
The image was supposed to be a joke after Salmond compared Qatar and Scotland, but Rennie said he had "withdrawn" it, adding that it was published on his day off: "I apologise for the offence that has clearly been caused by our cartoon on the first minister's remarks in Qatar.
"Although I did not approve its publication I accept responsibility for it", he told BBC Scotland's Good Morning Scotland.
But it's not the first - and won't be the last - political ad to cause offence. Take a look at our pick of bad political adverts below, from the offensive to the downright weird:
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