Former Italian prime minister Silvio Berlusconi has undergone surgery in a US hospital.
ANSA news agency, quoting sources at a clinic in Cleveland, Ohio, said the operation was "simple", without giving further details.
Mr Berlusconi (70) suffered a heart scare last month.
His press office yesterday confirmed that the opposition leader had travelled to the United States for scheduled medical checks.
There has been intense media speculation in Italy that Mr Berlusconi, who was admitted to hospital for three days after collapsing at a rally late last month, would have to be fitted with a pacemaker.
His doctors identified an irregular heartbeat but said there was no reason for concern.
