Palestinian minister for settlements affairs, Ziad Abu Ein, died following clashes with Israeli soldiers near a settlement in the West Bank Wednesday, Palestinian sources confirm to Fox News.

Abu Ein participated in a tree planting activity near a Jewish settlement in the West Bank. What killed the Palestinian official remains unclear and his body will undergo an autopsy attended by Palestinian, Jordanian and Israeli pathologists, the Israeli army said.

Abu Ein was one of the protesters carrying olive tree saplings during a demonstration against land confiscation when Israeli troops fired the tear gas. The troops also beat participants with rifle butts.

Later Wednesday, a 12-year-old Palestinian boy was shot in the head and seriously wounded in a confrontation with Israeli soldiers in the nearby Jalazoun refugee camp, said Ahmed Bitawi, the head of Ramallah Hospital. The Israeli military said it was checking the report.

Palestinian President Mahmoud Abbas was to meet with senior officials from the Palestine Liberation Organization and his Fatah movement later Wednesday to discuss a possible response to Abu Ein's death. In a statement, Abbas called the death a "barbaric act," but added that he would wait for the results of the investigation before deciding on a response. He also called for three days of mourning in the Palestinian territories.

Some called for suspending Palestinian security coordination with Israel in the West Bank, but it was not clear if that option would be considered.

Wednesday's events began with a march by several dozen Palestinians who headed to agricultural land near the West Bank village of Turmus Aya to plant olive tree saplings, participants said. The land is close to an Israeli settlement and mostly off limits to the village's farmers, protesters said.

As the marchers walked toward the land, Israeli soldiers fired tear gas and threw stun grenades at the Palestinians, said Kamal Abu Sassaka, an assistant to Abu Ein who said he was by the Cabinet member's side the entire time.

Abu Ein told an Israeli officer that this was a peaceful protest, but was told the group could not move further, said Abu Sassaka.

He said there was pushing and shoving between marchers and soldiers, and that soldiers fired tear gas toward the legs of the Palestinians.

He said one soldier hit Abu Ein in the chest with his rifle butt. An AP photographer and an Israeli reporter at the scene said they did not see Abu Ein being hit with a rifle butt.

Abu Ein, pale faced, sat the ground after the clash, holding his chest. Abu Sassaka said an Israeli soldier administer first aid to Abu Ein before protesters took him to a village clinic. An ambulance later took Abu Ein to Ramallah Hospital and he died en route, Abu Sassaka said.

The Israeli military said that about 200 "rioters" gathered in Turmus Aya and that troops prevented them from reaching Adei-Ad, a nearby settlement, using "riot dispersal means." That typically means tear gas and stun grenades.

The Israeli military also said it proposed to Palestinian officials that they conduct a joint investigation into Abu Ein's death.

Abu Ein headed a Palestinian Authority department dealing with Israeli settlements and the Israeli separation barrier, and had the rank of Cabinet member. Previously, he served as deputy minister for prisoner affairs.

Abu Ein was a member of Fatah and had spent several years in Israeli prisons. He was arrested in the United States in 1979 and extradited to Israel two years later. There, he was sentenced to life for being a member of a cell that planted a bomb that killed two Israelis. Abu Ein was released in a 1985 prisoner swap.

During the second Palestinian uprising in 2002, he spent a year in administrative detention without trial or charges.

The Associated Press contributed to this report.