Tim Cook has written to Apple employees following Trump's victory

The US president-elect has promised to bring Apple's manufacturing 'back from China'

Apple CEO Tim Cook has issued an internal memo to the company's US employees calling for unity following Donald Trump's shock election victory.

He quoted civil rights leader Martin Luther King, asking his staff to "move forward together."

Mr Cook like most tech leaders supported Hillary Clinton's campaign - he held a fundraiser during the summer for the Democrat.

"While there is discussion today about uncertainties ahead, you can be confident that Apple’s North Star hasn’t changed," he wrote in the document which was obtained by Buzzfeed.

Trump took aim at Apple during the campaign, "We're going to get Apple to build their damn computers and things in this country instead of in other countries," he said at a rally in January. It remains to be seen if this statement should be taken literally or not.

The New Yorker also called for a boycott of the company during its standoff with the FBI after the firm refused to provide access to the San Bernadino shooter's iPhone.

He also suggested that he should be getting paid by Mr Cook for mentioning Apple during his speeches.

"Our products connect people everywhere, and they provide the tools for our customers to do great things to improve their lives and the world at large. Our company is open to all, and we celebrate the diversity of our team here in the United States and around the world - regardless of what they look like, where they come from, how they worship or who they love," Mr Cook wrote after the election.

Apple stocks fell, along with other US tech firms following Trump's victory.