Presumptive Republican presidential nominee on Friday condemned the murder of 13-year-old Hallel Yaffa Ariel Jewish girl, who was stabbed to death in her bed by a Palestinian terrorist on Thursday.

Hallel was an American citizen, the State Department said on Thursday, condemning the attack “in the strongest terms.”

“I am shocked by the heinous murder of 13 year old Hallel Yaffa Ariel, who was attacked by a Palestinian terrorist while she was sleeping in her bedroom,” Trump wrote in a Facebook post. “I extend my deepest condolences to the Ariel family.”

Trump said, “The continuing incitement and preaching of hate by the Palestinian leadership, and the glorification of terror must end immediately.” He called upon the leadership of the Palestinian Authority “to condemn this murder and to take concrete steps to end this barbaric behavior.”

The presumptive Republican nominee, linking the post via his Twitter account, added, “Horrible killing of a 13 year old American girl at her home in Israel by a Palestinian terrorist. We must get tough.”