BERLIN (Reuters) - Britain should launch formal Brexit negotiations quickly and the bloc will not allow itself to be held back if London hesitates to trigger Article 50 of the EU treaty, European Commission President Jean-Claude Juncker was quoted as saying on Saturday.

"I will not meddle in Britain's domestic politics," Juncker told German media group Funke. "But it would be in the best interest of all parties if the divorce letter is submitted as soon as possible to not unnecessarily prolong the phase of uncertainty."

(Reporting by Michael Nienaber; Editing by Victoria Bryan)