NEW YORK (TheStreet) -- London Mayor Sadiq Khan sat down with Bloomberg reporter Tom Keene to discuss London's position as a financial hub following the U.K's decision to leave the European Union. Portions of the interview were aired this morning on "Bloomberg Markets: European Close." 

Khan is traveling in the U.S. and Canada to assure investors and businesses that "London is open."

The mayor was concerned that after the British people voted to leave the European Union on June 23 a perception would be created overseas that "somehow London was going to stop being open minded and outward looking."

Keene questioned Khan as to the alternative to London, to which the mayor replied that "There's only one London and there is no alternative."

Khan's had a question for his "friends in America, people that do great work in London," "Why would you want to go elsewhere?"

The mayor and his cabinet have impressed on U.K. Prime Minister Theresa May that London must have a "seat around the table" when it comes to negotiating with the EU.

"London is a powerhouse for the U.K. and the good news is I think the government recognizes that. Look, even if you were in favor of Brexit if you want to be on the right side of history and you want to make Brexit a success, it's in your interest to get the right deal with the EU," Khan said.

If the government doesn't get it right it could result in jobs and prosperity leaving London, he added.