"Two terrorists entered the synagogue in the neighbourhood of Har Nof. They attacked with an axe, a knife and a gun. Four worshippers were killed. The police who arrived at the scene shot and killed the two terrorists," Israel Police spokesperson, Luba Samri, said.
The two attackers entered the site on Harav Shimon Agassi Street, which includes a synagogue and yeshiva (rabbinical seminary), and carried out attacks in more than one location, security sources said.
"I tried to escape. The man with the knife approached me. There was a chair and table between us. My prayer shawl got caught. I left it there and escaped," Yossi, who was praying at the synagogue at the time of the attack, told Channel 2 TV.
Images from the aftermath of the brutal attack showed prayer shawls lying on the floor in pools of blood.
Also Read
"This is an area with a number of rooms," rescue services spokesman Zaki Heller said.
Netanyahu described the attack as a "cruel murder of Jews who came to pray and were killed by despicable murderers".
The Israeli premier said the attack was the result of incitement by Hamas militants and Palestinian President Mahmoud Abbas, which the world had ignored.
His sentiments were echoed by Strategic Affairs Minister Yuval Steinitz who said that "the terrorists wielded axes, but the voice was that of Mahmoud Abbas".
The Shehab news agency, which is connected to Hamas, quoted witnesses as saying that Israeli security forces had "started to surround Jabel Mukaber from all directions" in the wake of the attack.