RAMALLAH — A Palestinian minister died on Wednesday shortly after an Israeli border policeman shoved and grabbed him by the throat during a protest in the West Bank, an incident Palestinian President Mahmoud Abbas described as barbaric.

Ziad Abu Ein, 55, a minister without portfolio, was among scores of Palestinian and foreign activists who were confronted at an Israeli checkpoint while heading to a demonstration against Jewish settlements in the occupied territory.

Around 30 Israeli soldiers and border policemen fired tear gas and sound grenades at the group and a scuffle ensued in which a border policeman pushed Abu Ein and grabbed his neck firmly with one hand. Footage of the incident and pictures do not show Abu Ein responding with any violence.

Minutes later the minister began to look faint and fell to the ground clasping his chest. He died on his way to hospital.

The incident comes at a time of heightened tension between Israel and the Palestinians, following months of violent unrest in Jerusalem, Tel Aviv and the Israeli-occupied West Bank.

Hoping to head off any escalation as well as a possible erosion of security cooperation with Abbas’s forces, Israel reinforced troops in the West Bank. It also issued an apology.

“We are sorry about his (Abu Ein’s) death,” Defense Minister Moshe Yaalon said in a statement. He said Israel was investigating the incident. “Security stability is important for both sides and we will continue coordinating with the Palestinian Authority.”