Former Israeli president Shimon Peres was admitted to hospital on Thursday morning after experiencing chest pains.
The 92-year-old is reportedly now in a “stable condition” following an operation - a cardiac catheterisation - after doctors discovered a narrowed artery in his heart.
Ayelet Frish, the former president's communications consultant, said that Peres "woke up this morning at his home with palpitations and a feeling of constriction on his chest.”
Magen David Adom was called to the scene before taking Mr Peres to Shheba Medical Center Hospital near Tel Aviv.
A hospital spokesperson said: “Peres arrived at the Sheba Medical Center after experiencing chest pains. President Peres is fully conscious and in stable condition.”
Mr Peres served as president for seven years until 2014 and won the Nobel Peace Prize, along with former Israeli prime minister Yitzhak Rabin and Palestinian leader Yasser Arafat in 1994 following the signing of the Oslo peace accords with the Palestinians in 1993.