The Palestinian Authority president's spokesman said Abbas was hospitalized in Ramallah for routine medical checks.
Camp Solomon Schechter in Washington state, hosting a group that included Muslim Palestinian children, said it flew the flag "for the sake of a teachable moment."
The announcement came after days of consultations between Israeli, Jordanian and American officials.
Yosef Salomon's wife, Tovah, 68, who was seriously injured in the attack, was allowed to leave the hospital for the funeral.
Palestinian Authority President Mahmoud Abbas reportedly asked for Jared Kushner's help in removing the devices.
Kushner will appear before the Senate Intelligence Committee in a closed-door session, where he is expected to answer the committee's questions.
The senator, diagnosed with cancer, has had a healthy relationship with Jews on Israel, Iran, campaign finance reform and even kashrut.
The Fatah movement of Palestinian Authority President Mahmoud Abbas called for a "day of rage" after about 50 Muslim protesters and one Israeli officer were hurt in violent protests.
The kosher food manufacturer cited "a challenging time in the retail and grocery business" and said it was trying to help the laid-off workers find jobs.
Following a Birthright trip to Israel in 2014, Warmbier became involved in the Jewish community at the University of Virginia, the college's Hillel director told JTA.