Two Palestinians stabbed and killed an Israeli and seriously injured another at the entrance to Jerusalem’s old city before being shot and killed by border police in the latest incident in a wave of violence, reported Irish Times.

The attack occurred despite stepped-up security measures ahead of the Christmas period when thousands of Christian pilgrims are expected to visit the old city.

One of the assailants was killed at the scene; the other died of his wounds in hospital. Palestinian sources identified the attackers as a 19- and a 20-year-old from the Qalandiya refugee camp in northern Jerusalem. Both had served time in Israeli jails for security offences but were not identified with any militant group.

According to Times Of Israel, the DAIA and AMIA Jewish groups in Argentina both condemned the killing.

“The DAIA firmly condemns this abominable crime against a defenseless citizen, which happens daily in Israel, but, this time, took the life of a spiritual leader belonging to the Argentine Jewish community,” the group said in a statement, according to the Buenos Aires Herald.

Argentina’s ambassador to Israel called the killing “tragic and sad,” according to the Herald.

Rabbi Steven Burg, the head of the Aish yeshiva, wrote on Facebook that Birmajer “spent the morning teaching Torah and was murdered on his way out of the Old City.”

Also killed in the attack was Ofer Ben Ari, 46, a father of two girls, who died after being mistakenly shot by police amid the chaos of the attack.

His funeral is scheduled for 2 p.m. Thursday in Jerusalem.

Ben Ari’s family initially sought an autopsy but after they received proof that Ben Ari was killed by a single bullet dropped their demand.

“He was a hero, we have good memories. He was a man of gold who never harmed anyone,” Ben Ari’s 16-year-old daughter told the Walla news site.

“He was always supportive and he could not even kill a bug,” she said. “It is hard and we cannot stomach it, that such an amazing person died. It is inconceivable. He was murdered for nothing,” she said.