The Italian Prime Minister Silvio Berlusconi will not leave hospital until at least Wednesday after being injured in an attack in Milan. His personal physician Alberto Zangrillo told Italian television that Mr Berlusconi was able to eat, but only with difficulty.Mr Berlusconi, 73, suffered a broken nose, two broken teeth and a cut lip after being hit with a model of Milan cathedral after a rally in the city. A 42-year-old man was arrested and has been charged with aggravated assault.