European Commission president Jean-Claude Juncker echoed the urgency in beginning the Brexit negotiations adding: 'As far as the commission is concerned, we can open negotiations tomorrow morning at half-past nine'.
After calling a snap election in a bid to strengthen her hand, Theresa May now faces having to tear up her plans - should she cling on to power long enough to set them in motion.
He said: "Brexit negotiations should start when United Kingdom is ready; timetable and European Union positions are clear".
He said he hoped the new Government was one "with which we can conduct serious negotiations and if possible keep Great Britain as close as possible to the European Union".
"We understand there is a shared willingness from Britain to move ahead with these technical talks", he added.
"We will defend the interests of the 27 member states, and Britain will defend its own interests". "Do your best to avoid a "no deal" as result of "no negotiations".
Guy Verhofstadt, the former Belgian Prime Minister and now the leader of the European Parliamentary group of liberals and democrats, described the general election result as "yet another own goal" for the UK.
"We are ready. We have completed the guidelines, the framework", Merkel said Friday in Mexico City.
May's spokesman said the prime minister, who in March set Britain on a two-year countdown to leaving the EU that included a clean break with the bloc's single market and customs union, was not changing her position on what she wants from Brussels.
Responding this morning to the UK's hung parliament, Barnier said "Brexit negotiations should start when (the) United Kingdom is ready". "Let's put our minds together on striking a deal".
"After Cameron now May, will make already complex negotiations even more complicated" he wrote.