Spain formally requested euro zone rescue loans to recapitalise its debt-laden banks on Monday as the euro and shares fell on investor scepticism about this week's EU summit. 

Spanish Economy Minister Luis de Guindos asked for up to 100 billion euros ($125 billion) in a letter to Eurogroup chairman Jean-Claude Juncker, saying the final amount of financial assistance would be set at a later stage.

 

He confirmed his intention to sign a Memorandum of Understanding for the package by July 9 and said the amount should be enough to cover all banks' needs, plus an additional security buffer.

 

The rescue, agreed on June 9, is intended to help Spanish lenders recover from the effects of a burst real estate bubble and a recession, which have piled up bad loans and sinking property portfolios.