A gunman opened fire at a Jewish synagogue in Jerusalem, killing seven people and injuring ten.

According to the news agency Reuters, the shooting happened when a prayer ceremony was organized in the synagogue on the occasion of the Holocaust Remembrance Day.

US President Joe Biden contacted Israeli Prime Minister Netanyahu by telephone and strongly condemned the incident, calling it a "terrible terrorist attack".

According to a statement issued by the White House, President Biden made it clear that this was an attack against the civilized world and reiterated the strong American commitment to Israel's security.

It should be noted that 10 Palestinians and 20 others were injured in an operation by the Israeli army in the Palestinian refugee camp in the West Bank yesterday.

According to the Israeli police, the gunman arrived at the scene at 8:15 pm on Friday night and opened fire, killing and injuring several people.

Israeli security forces killed the gunman on the spot.

In television footage, several injured people can be seen lying on the street outside the synagogue receiving medical attention.

The shooting incident by the police has been declared as 'terrorism', while the situation in the West Bank of Palestine has also been feared to become more tense.

No one has claimed responsibility for the attack, but Hazem Qasim, the spokesman of the Islamic movement Hamas, said that an "operation has been carried out" in response to the attack on the Jenin camp.

According to Israeli media, the gunman was a Palestinian resident of East Jerusalem, but this has not been officially confirmed.

Israel's Foreign Office put the death toll at 7, while the ambulance service said 5 people died.

On the other hand, as soon as the news of the shooting at the Jewish place of worship in Gaza was received, rallies were taken out and aerial firing was fired in joy.