Israeli forces in Jerusalem have been pursuing since yesterday the perpetrator of a shooting that killed a female soldier at a military checkpoint in occupied East Jerusalem, hours after the killing of two Palestinians during an Israeli army operation in the West Bank in New York. signs of an escalation of violence that “worries” the United Nations. The Israeli army said: “A female Israeli army soldier was killed after she was mortally wounded in a shelling that took place at the Shuafat checkpoint.” In a statement, Israeli police confirmed the arrest of three Palestinians in their twenties from East Jerusalem on suspicion of “involvement in the attack” and the military checkpoint was closed to the crossing. He added: “In the meantime, the police and border guards, including a police helicopter, continue operational search activities to detain the person who carried out the operation.” An Agence France-Presse correspondent said he saw a woman dressed in security forces being treated in one of two ambulances on site. The pavement was bloodied at the checkpoint, which was closed and a security cordon was set up around it. police officers were stationed near the crossing and inside the refugee camp, where fireworks were set off. In a statement yesterday morning, the Palestine Red Crescent Ambulance Society said: The Israeli occupying forces are preventing ambulances from entering the Shuafat and Anata areas, which are close to the site of the attack. The association held “the occupying forces fully responsible for any harm caused to those in need of emergency medical care” in the two areas.