A Romanian construction worker was killed Monday in a Palestinian shooting attack in the West Bank, only a day after the three largest Palestinian factions said they would observe a temporary truce.

The Al Aqsa Martyrs' Brigades (search), a militia affiliated with Yasser Arafat's (search) ruling Fatah (search) movement, claimed responsibility for the shooting near the West Bank village of Yabed.

"We do not agree with the cease-fire," a group of militiamen from the West Bank town of Jenin said in a statement. "This is our first action. This is the beginning."

The militia consists of bands of gunmen who do not recognize a central authority -- unlike the armed wings of Hamas and Islamic Jihad, the other signatories to the three-month truce.

The victim was a Bulgarian worker involved in road construction by Israel. The worker was driving in a truck when he was shot in the head, the army said.

Palestinian militants have carried out dozens of shootings on West Bank roads in the past 33 months of fighting.