Israeli Prime Minister Benjamin Netanyahu has had emergency surgery to fit a pacemaker, after being taken to hospital on Saturday night, reports BBC.
Doctors said the procedure went well and he is not in a life-threatening condition.
Netanyahu's hospitalisation comes ahead of a key vote in parliament on a contentious overhaul of the judiciary.
Protests against the reform have swept Israel, with many workers vowing to strike if the bill goes ahead.
In a video address ahead of the overnight surgery, Netanyahu said he was feeling "excellent" but listening to his doctors.
There had been growing questions over his health after he was admitted to hospital last week supposedly suffering from dehydration.
The operation went smoothly "without any complications," Professor Roy Beinart from the Sheba Medical Center said, adding that Netanyahu "is not in a life-threatening condition".
His office said Netanyahu was expected to be discharged later on Sunday, but trips planned to Cyprus and Turkey would be rescheduled.
Bd-pratidin English/Golam Rosul