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.
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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.