FRANKFURT (Reuters) - German regulators are increasingly sceptical about London as the headquarters location for a merged entity of Deutsche Boerse (>> Deutsche Boerse AG) and London Stock Exchange Group (>> London Stock Exchange Group Plc) following Britain's vote to leave the European Union, two German regulatory sources told Reuters on Friday.

"There is rising irritation and increasing concern that London as a base poses a problem," one of the sources said.

The exchange regulator in the German state of Hesse, where Deutsche Boerse is based, declined comment.

(Reporting by Andreas Kroener; Writing by Jonathan Gould; Editing by Maria Sheahan)

Stocks treated in this article : Deutsche Boerse AG, London Stock Exchange Group Plc