JERUSALEM — Gaza Palestinians threw slippers or shoes and rocks at a car carrying United Nations chief Ban Ki-moon as he crossed from Israel into the Gaza Strip.

Thursday’s protesters, relatives of Palestinians held in Israeli prisons, tried to block Ban’s entrance into Gaza and demonstrated against what they called his “bias to Israel.” He was scheduled to visit Khan Younis, as well as the headquarters of the United Nations Relief and Works Agency.

Ban met Wednesday with Israeli and Palestinian Authority leaders. He called on the Palestinians to stop shooting rockets at Israel and on Israel to stop building in the West Bank in order to bring both sides back to peace negotiations.

Ban is scheduled to deliver the keynote address at the 12th annual Herzliya Conference on Thursday evening.