JERUSALEM — A Palestinian man sprayed acid on six members of an Israeli family in a car and an Israeli hitchhiker in the West Bank on Friday, wounding them lightly to moderately, according to the Israeli military.

The assailant, who was also wielding a screwdriver, was then shot and wounded by an Israeli passer-by, the military said.

The events took place on a main road near the Palestinian town of Husan in the Etzion settlement bloc south of Jerusalem, where the family had stopped to give the hitchhiker a ride. The military initially said the Palestinian had been trying to get a ride with the family, but later updated its account to say he was just standing next to the Israeli hitchhiker.

It was the latest in a wave of attacks carried out by lone Palestinians, though the first to involve acid. Eleven people have been killed in recent weeks by Palestinians using vehicles, knives, meat cleavers and guns as weapons.