Michael Fowler, founder of US clothing company Solid Gold Bomb has apologised for the offensive slogans on T-shirts advertised for sale on Amazon.
In a statement on the company's website, he said: "I am sorry. As the party responsible within our company for scripting and creating this automated process that created the matched slogans for this "Keep Calm" series, I apologise for the offensive response this has created across the world".
He went on: "Currently, our listings have been fully removed and we are working to delete the entire parody series.
"Rest assured, we do not condone the offence nor do we have any desire to promote it."
More top news
The rain band will soon be clearing eastwards, but more showers will be affecting parts of the UK this afternoon.
David Cameron will stand down as Conservative leader ahead of the general election expected in 2020, Iain Duncan Smith said.
Delegates at the SNP spring conference have backed a move to allow all-female shortlists in the Scottish Parliament election next year.