NICOSIA (Reuters) - European Union finance ministers agreed on Thursday to use the European Financial Stability Mechanism for a 7 billion euro bridge loan to Greece until the country negotiates its next full bailout, European Commission head Jean-Claude Juncker said. "In the course of this afternoon, the ... Ecofin found an agreement on the bridge financing," Juncker told a news conference in Cyprus. His spokeswoman tweeted shortly afterwards: "Good news Eurogroup & ECOFIN found agreement on EU_Commission proposal on EFSM bridge financing until mid-August." (Reporting By Jan Strupczewski)